Ladies and gentlemen, thank you for standing by. Welcome to the MarketAxess First Quarter 2024 Earnings Conference Call. At this time, all participants are in listen-only mode. Later, we will conduct a question-and-answer session. As a reminder, this conference call is being recorded on May 7, 2024. I would now like to turn the call over to Steve Davidson, Head of Investor Relations at MarketAxess. Please go ahead, sir. Good morning, and welcome to the MarketAxess First Quarter 2024 Earnings Conference Call. For the call, Chris Concannon, Chief Executive Officer, will provide you with a strategic update on the company. Rich Schiffman, Global Head of Trading Solutions, will update you on the performance of our markets this quarter, and then I will review the financial results. Before I turn the call over to Chris, let me remind you that today's call may include forward-looking statements. These statements represent the company's belief regarding future events that, by their nature, are uncertain. The company's actual results and financial condition may differ materially from what is indicated in those forward-looking statements. For a discussion of some of the risks and factors that could affect the company's future results, please see the description of risk factors in our annual report on Form 10-K for the year ended December 31, 2023. I would also direct you to read the forward-looking statement disclaimer in our quarterly earnings release, which was issued earlier this morning and is now available on our website. Now, let me turn the call over to Chris. Good morning, and thank you for joining us to review our first quarter results. Turning to slide three of my strategic update. We delivered 4% total revenue growth, including the benefit of our Pragma acquisition, and earnings per share was $1.92. While we are not happy with recent trends in our estimated market share in U.S. credit, we recognize the importance of being equally strong in the faster-growing areas of the market, and we have a clear strategy to return to higher levels of share growth. We are attacking these faster-growing areas of the market while maintaining and building on our leadership in the institutional investor RFQ market. Our strength in this segment of the market is underpinned by our leading global client franchise and the largest single source of liquidity in the credit markets, Open Trading. First, in the quarter, our global client franchise continued to expand. We had a record 2,100 active client firms. Next, we delivered record commission revenues across several credit product areas. U.S. high-grade commission revenue grew 8%, and we delivered record levels of commission revenue in emerging markets, Eurobonds, and municipal bonds, helping to offset the impact of lower U.S. high-yield activity. The benefits of our geographic and product diversification continue to pay dividends. Non-U.S. credit revenue was a record $92 million in the quarter, representing a record 44% of total revenue. Last, we continue to be disciplined around our expense management, with total operating expenses increasing only 9%, including the impact of Pragma. We delivered these results against a market backdrop of historically low levels of credit spread volatility, which has created the ideal conditions for growth of portfolio trading and dealer-centric protocols. These low levels of volatility have also impacted ETF market participants and hedge funds, decreasing activity in our U.S. high-yield business. We believe, however, that our estimated share will recover with more normal levels of spread volatility due to the diversified liquidity on our platform. We were pleased to see an improvement in estimated high-yield share in the back half of April. We are encouraged by the strong new issuance calendar to the start of the year, as well as the increase in trading velocity. Strong new issuance is an indicator of healthy growth in our market, and increased trading velocity means that dealers are trading more with much smaller balance sheets. This trend should only continue with significantly higher bond yields, making fixed income a very attractive asset class. This is a key attribute of our market today. All our clients need to do more with less, and we are very well-positioned to address this need. Slide four illustrates how portfolio trading and dealer-initiated trading significantly expanded the overall market in April. Since 2019, portfolio trading and dealer-initiated flow have grown at four-year CAGRs of 38% and 10%, respectively, compared to 2% for client-initiated flow. The growth of these segments is closely linked because dealers typically recycle the risk from a portfolio trade in the interdealer market. For portfolio trading, we have made substantial investments in our PT solution, and the share gains we saw at the end of April indicate that we have designed a very competitive trading solution for our clients. We will continue to rapidly deploy enhancements to our platform as we are still in the early stages of PT innovation. For dealer-initiated flow, we are now delivering the same trading automation tools to dealers seeking liquidity that have been rapidly growing with investor clients. These tools improve dealers' trading efficiency and help solve their need to rapidly exit inventory risk. Approximately 30% of the liquidity we provide to dealers comes from our investor client firms. Accompanying the electronification of larger-sized portfolio trades is the explosion in ticket count, as shown on the right-hand side of this slide. X Pro, our new platform designed to make trading more efficient, is now handling 55% of U.S. credit trade count for our 22 largest clients. Slide five illustrates key trends in portfolio trading. The growth of PT is a very important step in the evolution of the market. Portfolio trading is a protocol of immediacy, which has helped accelerate the electronification of larger-sized trades, representing approximately 10% of the high-grade and high-yield trade market in April. portfolio trading has also allowed traders to do more, more efficiently, and with a streamlined workflow. The impressive growth of portfolio trading shows us the sizable demand our clients have for immediacy and efficiency, with the average notional per line item of a PT trending lower. We believe we must address that demand for immediacy and efficiency in all products and across all types of market environments. This is a great trend for the market overall, and it is a strong indicator of future e-trading demand for trades of all sizes. But we do believe that historically low credit spread volatility has created very supportive market conditions for the recent growth in portfolio trading. Slide 6 frames the U.S. high-grade market opportunity. While portfolio trading and dealer-initiated trading have been growing faster, we are also continuing our investments in higher margin, high-quality areas of the market. Our launch of credit algorithms and block trading solutions on X-Pro are targeting the more challenging parts of the market that have not migrated to electronic trading solutions. The client-initiated segment of the market, excluding PT, is an estimated $620 million revenue opportunity, representing approximately 58% of the total estimated e-trading opportunity in U.S. high-grade. And as trade sizes greater than $5 million are broken down into smaller trades, we believe that the higher fee per million, combined with an increase in velocity, can drive this revenue opportunity significantly higher. We believe that the market opportunity over the long term is actually moving into our sweet spot, not away from it. In summary, we are attacking the higher growth areas like portfolio trading and dealer-initiated execution, while we are keeping our focus on building solutions for the largest, most attractive parts of the credit markets. Slide seven, we highlight the client toolkit we are building for the future. MarketAxess is a global network with a privileged position in the credit markets. The unique tools that we are building for traders are being delivered by X-Pro, giving traders a portal to access our powerful data and analytics, our automation and algorithmic trading tools, and the single largest source of liquidity in the credit markets. We are an increasingly integrated ecosystem, focused on making life easier for traders while solving for our clients' need to do more with less. Now, let me turn the call over to Rich to provide you with an update on our markets. Thanks, Chris. Slide nine highlights the continued strong expansion of our client network. We had a record 2,018 active client firms trading on our platforms in the first quarter, which included 1,619 client firms active in U.S. credit, and a record 1,066 active international firms. Trading volume from hedge fund and private bank clients increased 23% year-over-year and represented 18% of total credit volume, up from 16% in the prior year. Adoption of our automation suite of products continues to grow, as shown on slide 10. We experienced another quarter of record automation trade volume and count, with three-year CAGRs of 34% and 40% respectively, and a record 231 active automation client firms. Automation trade volume now represents 10% of our total credit volume and a record 25% of our total credit trades. There were a record 11 million algo responses from dealers, an increase of 50% year-over-year. On Slide 11, we highlight the expansion of our trading business across geographies and products. Continuing the theme of strength in our international businesses, we generated record international client trade volume and trade count in the first quarter. Trade volume was up 13% versus last year, with a three-year CAGR of 10%. Trade count was up 10% versus last year, with a three-year CAGR of 19%. A key driver of this strength was record total emerging markets trading volume, up 15% year-over-year, driven by a 28% increase in local currency trading volumes. Our LATAM and APAC clients generated record levels of emerging markets ADV in the quarter, up 11% and 55%, respectively. We were pleased to see a strong increase in EM volumes in the first quarter, and that strength has continued into April. Emerging markets continues to be a very attractive growth opportunity for the company. Last week, we announced that Dan Burke has joined the company as Global Head of Emerging Markets. We're excited to have Dan's experienced leadership in this important and growing business. Axess IQ, our front end for private banking clients, generated ADV of $140 million, an increase of 22%, and record trade count of 62,000, up 54% compared to the prior year. We are also seeing strong product diversification in municipal bonds, with record estimated market share of 6.5%, up from 5.7% in the prior year. Slide 12 provides an update on Open Trading, our market-leading all-to-all liquidity pool. Open Trading ADV was $4.4 billion, and share of total credit volume was 34%, down from 37% in the prior year. Hedge fund trade activity has continued to expand on our platform, with record ADV of $1.9 billion in the quarter, up 30% from the prior year. A total of 202 hedge funds provided liquidity through Open Trading in the quarter, a 6% increase from the prior year. Lower volatility and lower price dispersion in the market reduces the price improvement opportunity in OT, as shown on the lower left of this slide. It has also impacted our high-yield product area, as shown in the chart on the lower right, as ETF market maker activity has declined. Open Trading continues to be the largest single source of secondary liquidity in the U.S. credit markets, driven by our diverse liquidity pool. Now, let me turn the call over to Steve to review our financial performance. Thank you, Rich. On slide 14, we provide a summary of our first quarter financials. We delivered revenue of $210 million, up 4% from the prior year. These results include $8 million from the Pragma acquisition. Foreign currency was a $1 million benefit in the quarter. Information services revenue of $12 million was up 8%, including a $200,000 benefit from currency fluctuations. The increase was driven by new contracts as we continue to experience strong adoption across our data product suite, especially Composite+. Post-trade services revenue of $11 million was up 8%, including a $200,000 benefit from currency fluctuations. The favorable interest rate environment contributed $6 million of interest income, up from $4 million. The effective tax rate was 24.9%, and we reported diluted EPS of $1.92 per share. On Slide 15, we provide more detail on our commission revenue and our fee capture. Total commission revenue increased $3 million, or 2% in the quarter. The increase in credit commission revenue was due to stronger estimated market volume across several product areas, mostly offset by lower estimated market share and high-yield on lower credit spread volatility. The reduction in total credit fee capture from the prior year was driven principally by product mix, specifically lower high-yield activity. The decline in fixed distribution fees was driven principally by the consolidation of two global bank trading desk operations. On Slide 16, we provide a summary of our operating expenses. First quarter operating expenses of $118 million included $8 million from Pragma and a $600,000 negative impact from foreign currency fluctuations. Based on the progression of expenses in the first quarter, operating expenses for full year 2024 are tracking to the low end of the previously stated guidance range of $480 million-$500 million. On Slide 17, we provide an update on our balance sheet, cash flow, and capital management. Our balance sheet continues to be solid, with cash and investments totaling $513 million as of March 31, and we had no outstanding borrowings under the credit facilities. We repurchased 47,000 shares in the quarter for a total of $10 million, and a total of $90 million remains on the current board authorization. During the trailing 12 months, we paid out approximately $110 million in quarterly dividends to our shareholders. Our board of directors declared a regular quarterly cash dividend of $0.74 per share based on the financial performance of the company. Now, let me turn the call back to Chris for his closing comments. Thanks, Steve. In summary, on slide 18, we continued to execute very well against our growth strategy in the first quarter. The increase in new issuance, higher rates, and an increase in velocity of trading all point to a healthy and growing fixed income market. We are disappointed with our market share in U.S. credit, and we recognize the importance of being equally strong in the faster-growing segments of the market. We have a clear strategy to attack these areas, leveraging X-Pro as our delivery mechanism for the retooling of our trading offering. While we continue to drive adoption of X-Pro with clients, we are maintaining our leadership position in the investor-client e-trading space, and our focus continues to be on the largest, most attractive order flow in the credit markets and building the client toolkit of the future and to help our clients do more with less. Now, we would be happy to open the line for your questions. Thank you. We will now begin the question-and-answer session. If you have dialed in and would like to ask a question, please press star one on your telephone keypad to raise your hand and join the queue. If you would like to withdraw your question, simply press star one again... If you are called upon to ask questions or are listening via loudspeaker on your device, please pick up your handset and ensure that your phone is not on mute when asking questions. We do request for today's session that you please limit to one question and one follow-up. Again, press star one to join the queue, and our first question comes from the line of Chris Allen from Citi. Please go ahead. Yeah, morning, everyone. Thanks for taking my question. I wanted to follow up on portfolio trading. You talked in the past about making inroads into the traders who control portfolio trading, who are also the key market participants for block trading. So I wonder if you could give us an update on what kind of progress you have made there, adding any new clients, and also the 40% share noted the last day of April, was that due to one large trade, new clients turning on, or some other factors? Sure, Chris. Thanks for the question. Obviously, we've had a great deal of focus on portfolio trading, more recently. As you know, we've recently launched our new platform, X-Pro, just last year, and obviously, we launched X-Pro specifically for portfolio trading, with an embedded portfolio trading solution just nine months ago. We've been ramping up features, functionality, on that platform as well, and we've seen some of the benefits of that. More importantly, we do see that pre-trade analytics, particularly with our proprietary data, is a critical part of that strategy. Providing traders with those pre-trade analytics helps them with not only how to trade the portfolio, but also how to construct the portfolio and optimize that portfolio. So that's been an area of positive feedback that we've been getting from the portfolio traders in the space. Again, remember, Portfolio Trading is quite concentrated. Somewhere between 30-40 traders in the U.S. really drive the largest market share of PT trading, and with the largest clients driving the largest share of PT trading. So more recently, particularly in April, we saw benefits of the rollout of X-Pro for Portfolio Trading. In April, it now makes up... X-Pro makes up about 60% of the volume, PT volume, that we see on the platform. And then with regard to your question around that, that end-of-month statistic, we, you know. End of month is a unique time for us, and the market is quite high volumes where people are repositioning their portfolio. So you do tend to see a higher number of portfolios. It was not one or two portfolios. It was a series of portfolios that we saw that day. Rich, anything to add on Portfolio Trading? Just the chunky nature of it, and you can have a lot of spikes up and down, Chris, I mean, with, you know, adoption on any given day. It's a, as Chris pointed out, it's a targeted group. It's a relatively small number of PTs that we're all after. We, you know, we estimate about 20-40 per day of substantial size, call it $50 million and above, and we're all going after those. So on the days where we can capture it, and we had a great day on month-end, you see a number like that 40%. That gives us a lot of confidence that we can carry that on to, you know, throughout the entire month. So clients are open to, you know, using different platforms, and with the liquidity being the same across, it's a matter of coming up with the best workflows and unique features that are gonna attract the traders to our solution. Thanks. And just on my follow-up, I just wanted to ask about X-Pro. Gave us the metric around the top 20 clients, but I'm wondering where you guys stand in rolling it out to your overall client base. Then specifically, where are you in the process for signing up with dealers for dealer access up to X-Pro? Sure. Again, just to remind everyone, X-Pro is our new platform. It comes with new features and offerings. It really allows clients to trade bonds of any size or complexity, like, things like portfolio trading. It also is a cockpit for traders to start their day, so it is a unique offering from MarketAxess. We rolled out X-Pro for RFQ, traditional RFQ, last year. We were targeting our largest clients, and within our largest clients, what we call our power users. These are traders that trade higher volumes in ticket count. We've seen since that rollout, very positive trends as a result of X-Pro use. At the trader level, anecdotally, we've seen, you know, somewhere around 20% increase in ticket handling, so that there is great efficiency in embedded in X-Pro. Currently, with regard to the rollout, Chris, only about 16% of our total U.S. credit volume is going through X-Pro at this point. So we still have a long way to go to accelerate the rollout of X-Pro. And again, as I mentioned earlier, we only launched the PT solution on X-Pro just nine months ago and continue to add additional features, functionality, and obviously pre-trade analytics. We do have an important phase of X-Pro coming this summer. It's our first phase of X-Pro for what we call high-touch or block trading, and that's regarding your question around dealer content. We are onboarding dealer content as we speak. We're quite encouraged by the dealer feedback around providing content to our platform. Remember, our high-touch solution or our block trading solution is very dealer-friendly. It allows dealers to be in comp without all-to-all. So it allows them to price clients based on a smaller universe of competition. We are also adding to X-Pro what we call unique proprietary data, AI Dealer Select, which helps clients select the preferred dealer in a given CUSIP or a given bond. So these are all proprietary solutions that we're seeing should be rolled out starting in late summer. We'll start seeing additional phases of our X-Pro rollout for what we're calling high-touch or block trading solution. Thanks, August. Our next question comes from the line of Alex Kramm from UBS. Please go ahead. Yes. Hey, good morning, everyone. I know there's a lot of focus on portfolio trading, but if I look at your TAM chart, you clearly think that dealer-initiated opportunities is bigger. So, you know, maybe you can give us an update there. It's a very crowded space, and you obviously have admitted that you're kind of late to it. So just seeing where you stand today, any inroads you've made, any feedback you've gotten, and how pricing may be a differentiator there in particular. Yeah. Hi, Alex, it's Rich. And, you know, we feel really good about our dealer business. It's something that we've been in for a number of years, and we lead there with our flagship protocol, which is RFQ, and we've offered that to dealers for over a dozen years now. And, you know, its adoption rate is pretty wide. Where we have work to do is on single-price auctions or matching protocols, which have become pretty attractive over the past several years in the market now. That is a protocol where network effects really matter, and you need critical mass, and we have a solution in the market, and now we're actively working on building up the adoption for it. We're doing that in both London for the Eurobond market, and we're doing it here for investment-grade and high-yield markets. And, it's an onboarding process and, getting the adoption, you know, built up. And, you know, we're confident we'll be competitive in that space as well. We are working on delivering new tools for dealers, similar to the way that we're rolling out X-Pro for buy-side traders. We're gonna be doing similar for the sell-side traders so that they can more productively access these protocols. So it's a combination of traders who use it from a front-end tool and also via APIs for the firms that have their own internal trading systems, and they want to connect, you know, through there in a more efficient manner. So, investments in interfaces, investments in protocols, and then also tying those protocols together is something we're focused on so that someone can try... I'm gonna be, you know, matching at a mid. If I don't get that available, maybe I want to leave a resting order in an order book. Or then I ultimately want to tap in, I have to sell or I have to buy, I'm gonna hit the bid or lift the offer using RFQ. So it's combining these pieces that we have right now, which are, you know, kind of operating independently. We believe that's gonna be really attractive to the sell-side traders. Alex, I'd just add, as Rich was mentioning, some of the new protocols and offerings that we're providing to dealers, one important one, which only rolled out in December of last year, is our automation suite. It's quite a popular suite of solutions for our clients. We now provided that automation suite to dealers. It is now about between 17%-20% of our dealer RFQ, that allows dealers to price quite effectively across the spread, using an automated RFQ tool. So that's well-received among the dealers and continues to ramp up, and we're seeing positive benefits in our dealer RFQ volumes as a result. All right. Very good. And then just maybe just super quick housekeeping question on, on, FPM, maybe for the first quarter or April. Can you give us a little bit of a breakdown, where we stand on the different, product types, high-yield versus high, versus high-grade, Eurobonds, et cetera? Thanks. Yeah. Hi, Alex, it's Steve here. In terms of the fee per million, you know, in April, you know, we've mostly seen, you know, pretty, pretty stable pricing across the products. You know, what you've seen in April was the impact of higher PT, which definitely, you know, dampened it a bit. We were down overall about $2 per million, so, you know, a lot of that was PT. You know, but I think that the Eurobonds piece was a little bit better if you think about it year-over-year. Last year, remember, we had those crossing trades, which did depress the fee per million, and it came back this year in April, back to more normal levels around $120. So overall, I think pricing is pretty stable. It's just that, that PT increase in April was, outsized. Fair enough. I'll follow up. Thanks. Our next question comes from the line of Patrick Moley from Piper Sandler. Please go ahead. ... Yeah, good morning. Thanks for taking the question. I just, you know, not to hammer on portfolio trading, but appreciate the disclosure around market share on the last day of April being 40%. I was hoping, you know, you could just maybe frame, help us frame that. Like, how did that compare to the rest of the month, and maybe where you've been year to date? And then, given that this is going to be a big focus area moving forward, is there anything you can give us in terms of, you know, guideposts for kind of measuring how you guys are performing from a market share standpoint in portfolio trading? Thanks. Yeah. Thanks, Patrick. And, obviously, we expected to focus on portfolio trading today, and we've obviously been focused on portfolio trading for some time, particularly with rollout of new solutions to solve the portfolio trading market. We do think the portfolio trade is an important tool for our largest clients. Obviously, it's a tool for immediacy and efficiency of trading. In this credit environment where we're seeing, you know, high levels of demand for fixed income products, that's a benefit to our client franchise, and we're seeing them convert that demand for fixed income into large portfolio trades. I think the month of April was what I'd call an unusual month for portfolio trading. We saw a number of very large portfolio trades during the month, somewhere around $10 billion and $7 billion in size. So these are—those are quite sizable portfolio trades that we haven't seen, almost record size. We expect portfolio trading to continue to be a vibrant part of the credit market, and that's why we're so focused on delivering a solution. You know, as we mentioned, just a number of trades, a handful of trades can swing market share in the PT market. And, but it's such an important part of our clients' demand for immediacy that we're trying to deliver, an enhanced solution through X-Pro to solve the PT. We do think that those pre-trade analytics are a critical part of our traders, and we get positive feedback. We've added things like tradability that help you really analyze your portfolio and make decisions around what should and shouldn't be in the portfolio. We've added other portfolio construction tools as well. And we've also increased the line item capacity, so our clients can trade very large line items. Over 2,000 line items is part of the demand we're seeing from the largest clients. So we do see it as a critical toolkit in our clients' toolkit, and we will continue to report. Obviously, we have our monthly reports where we share our PT volume regularly and the overall TRACE PT volume in the market. So hopefully, you could just look out for our monthly reports, and you'll see greater progress throughout the course of the year in our PT volume. Okay, thanks for that. And then you repurchased $10.1 million worth of shares this quarter. I think that was the first or the most significant repurchase you did since the middle of 2022. So can you talk about that decision and maybe what we should expect in terms of the size and pace of buybacks from here? Thanks. Yeah. Hi, Patrick, it's Steve here. So, you know, there's really been no change to our approach with capital. You know, I think we're still focused on the dividend, and our buyback activity is really still focused on just offsetting dilution. And, you know, I think that we basically front-loaded some repurchases about two years ago, so we almost put, like, two years of repurchases a couple of years ago. So I think we'll be opportunistic, you know, going forward in terms of repurchases and. But no change overall in terms of the philosophy for capital. All right, great. Thank you. Our next question comes from the line of Kyle Voigt from KBW. Please go ahead. Hi, good morning. Maybe just first on the high-yield side, you know, the share has been a bit volatile month-to-month this year. I guess the question on April with the uptick in share, was that primarily from higher pure ETF market maker flow, given some of the elevated high-yield ETF volumes we saw in the month, but the systematic traders have remained disengaged? Or are you really starting to see, in April, some of those systematic traders or hedge funds reengage in that market yet, that you had called out earlier this year, that had kind of pulled back? Yeah. Hi, Kyle, it's Rich. It's a combination. I mean, we were happy to see a little bit of a, you know, pick up back from March, 13.9 versus 12.7 from March. We've still got a way to come back, but, you know, we're seeing the signs that the market conditions are becoming more favorable. It's a combination of activity from both real money and from the ETF community. So it's definitely trending in the right way here, so. Okay. And then just maybe one more follow-up on PT. You noted some of the added functionality there, but can you remind us of differences in fee structures in your PT offering versus your competitors? I recall there was maybe something you were evaluating in terms of changing the fee structure or the billing for the product. I guess, have any final decisions been made on that? And do you think that could make a difference in positioning the offering competitively, in addition to what you're doing in terms of adding functionality to the product? ... Yeah. Yeah, thanks, Kyle. It's, you know, it's definitely a competitive space on PTs. And, you know, we've talked about it in the past, that the PT fee capture is at a lower rate than in comp business, and substantially lower than, say, all-to-all Open Trading business. And, you know, there are different ways to, you know, levy the fees. We know there are competitors out there that are trying to make a, you know, a name for themselves and break into this market, even going sometimes without any fees on it. We are shifting to a model where it's a levying of the fee on the dealer. It's consistent with the way others in the market are charging, and we didn't want to have a fee model that was standing out, you know, and putting us in an adverse position. So I'd say competitive on the fees and consistent in the manner of charging fees with others who are levying fees on these trades. And sorry, is that, is that already in place? You said the, the move to bill the dealers or- That's going to come in place with our, with our next major release, which is coming in the next few weeks. Understood. Thank you. Our next question comes from the line of Dan Fannon from Jefferies. Please go ahead. Thanks. Good morning. Sticking with the topic of PT, was hoping you could just talk about what you think the normal steady state of this protocol is as a percentage of volume or where it could get to. I think you put out some numbers previously, but the market has continued to evolve, so I was hoping to get your updated thoughts on kind of what you think that protocol can ultimately be as on a consistent basis. Sure. I'll take that. And, look, we certainly are at a fairly historically low levels of credit spreads and credit spread volatility. That certainly creates a ripe environment for not only portfolio trading, but also the dealer-to-dealer mid-market match solutions. So we certainly see at these levels of volatility that we've witnessed here in 2024, and certainly at times during 2023, higher levels of PT and higher levels of mid-market matching solutions. So we, you know, as credit spread volatility can increase, we do see it impacting levels of PT. Certainly in April, we had some spikes of volatility. During those periods, we saw slight decreases in PT during the trade day, but we continued to see a high level of PT throughout the month of April as volatility declined. So, we are certainly not predicting that these levels, historically low levels of credit spread volatility, will remain for the continued, you know, period of time. They typically go through cycles. We do think portfolio trading. That said, portfolio trading will be an important tool for our clients, and they will continue to remain at levels that we're seeing today. And we don't expect massive growth of the PT market over time. We do think it'll probably stabilize at a certain level and be just another important part of the market ecosystem. Yeah. Dan, I'll just add to that. I mean, it's definitely here to stay. It provides a lot of benefits to clients in terms of the workflow. You know, it's going to be interesting to see what happens when the market environment changes and volatility increases, and the PT becomes a relatively more expensive trade. Whether it's still going to maintain the kind of you know, percent of the market. Right now, we're seeing, you know, roughly around 10%. Whether that number goes down, stays the same, you know, I would not think that that's a number that's going to rise in a high vol environment when it becomes relatively more expensive, you know, versus doing trades in comp. So something to consider. Great. Thank you. And then just as a follow-up on expenses, I know it's earlier in the year, early in the year, but you're already tracking towards the low end of the guidance for this year. So I guess first, kind of what has changed since, you know, the initial guidance a couple of months ago? And then, as we think about the rest of the year and the factors that are going to take you to the, you know, lower than the low end or back towards the midpoint or higher, what are those? Is that just volumes? Is it market share, or what are the other factors? Yeah. Hi, Dan. It's Steve here. I think if you step back, you know, I think we're exiting a period of some pretty substantial investments that we've made, you know, with X-Pro, our proprietary data, ADS. So I think, you know, we've come out of that period. In the fourth quarter, we achieved some significant efficiencies, you know, coming out of the year. And I think, you know, what's going on in the organization is that we're more disciplined as we look at the expense base coming out of that spending. And we're looking for opportunities to really be more efficient, you know, across the board, but at the same time, ensure that we're really maximizing our investments for the future because we do have that, you know, huge runway. So I think that as we went through the first quarter, I think we saw some opportunities to achieve, you know, incremental efficiencies. You know, I think that, you know, as we move through the year, you'll probably see a bit of a bump up in terms of incremental new hires, given the normal seasonality. But I think that, you know, the first quarter run rate in terms of comp- ... is probably a pretty good place to be, $61 million or $62 million, and that reflects the incremental hires that we should be making throughout the next, the remainder of the year. But just remember that there is that seasonality in terms of our hiring through the year. So, I think we feel pretty good coming in at the end, at the bottom of the range right now, and obviously, we'll continue to monitor that and update you as we progress through the year. I would just remind you that 18% of our expenses are variable, so that's the piece that can move up or down with volumes. So that's an important component to how we think about our guidance. And as we mentioned earlier in the call, we're tracking to the lower end of our guidance, and it's just too early to update where we think we'll end up being in the year. Great. Thank you. Our next question comes from the line of Jeff Schmitt from William Blair. Please go ahead. Good morning. On X-Pro, thinking, how does it execute portfolio trades differently than what you were doing sort of prior to its rollout? And I guess, importantly, though, like, how does it compare to competitors now? Do you have any edge there? Yeah. Hi, Jeff. It's Rich. So from an execution perspective, it's consistent, and we have, you know, the back end of the trading system that's managing this. The real productivity gain and the difference maker is on the front end and how traders interact with our capabilities, okay? So think of X-Pro, it's a modern interface. It's designed to better handle large lists and be able to manipulate them more readily, which is something that was more challenging, let's say, to do in our legacy application. So the back end, it's leveraging all of the capabilities that we have in terms of how we process trades and how we send them through post-trade and, you know, downstream to the parties. But it's that interaction at the front level, at the user interface, that is really making a difference. And that is where we're going to be doing all of our new front-end development, is in this new tool. So we were saying earlier, it's not just isolated to PTs, although that's where our major focus is at the moment, but it's also going to be the front end that traders use for the high touch initiative, and it's already actively used today by traders who need to manage large lists, for example. So we can do several hundred line items in composite RFQ in composite much more easily than we can do in the old interface. That's gonna be the area of significant investment for us, and we believe that's going to be, you know, well-received by the traders and will lead to more business. And Jeff, I'd just add that, X-Pro, both the portfolio trading tool and X-Pro for RFQ are all built in cloud-based technology, so it's all new tech that we've rolled out here. It also allows us to make changes and introduce new features and functionality in a more rapid development environment. So we've seen changes rolled out from really, from trader feedback back out into production within weeks, rather than within quarters and months. So it's a very powerful tool, not just from the proprietary data that we can embed in it and all the pre-trade functionality that we can offer our trader, but it's also... it speeds up our delivery to market, any new features, functionality, or data that we're providing. So that makes it highly competitive for us in an already competitive environment. Great. Then a question on your high-grade market share. Could you discuss how institutional RFQ share is trending? I mean, is that a part of, of into the drop at all? Thank you. Yeah. On the share, I mean, we did see a bit of a decline. We are, you know, upon analyzing that, it's definitely due to the pickup in Portfolio Trading that occurred and also on the dealer business. We attributed, you know, mostly to those two factors and, you know, hence the extra effort that we're making in both of those areas. Those are the two, you know, significant investment areas for us to regain share. You know, we think in terms of our in comp client-to-dealer RFQ business on very solid grounds with that and, you know, Open Trading being the difference maker in terms of the liquidity pool and, you know, our ability to do all of the in-comp activity very efficiently for clients. It is largely due to the, you know, the challenges in PT right now and dealer business, dealer-initiated business. I would just add that our high-grade market volumes did increase in Q1 by 18%. Our block trading ADV increased as well. And more importantly, our automation continues to grow within the high-grade market. That's one area where we're highly penetrated... throughout that area, and we continue to see more automation ramping up. In Q1, automation was up 40%, and that automation volume is quite sticky. We see people moving into automation and remaining at those levels. So, across the high-grade market, we've seen growth, we've seen records, and more importantly, we've seen sizable penetration with our automation solution. Great. Thank you. Our next question comes from the line of Brian Bedell from Deutsche Bank. Please ask your question. Great. Thanks. Good morning, guys. Maybe just sticking with X-Pro. I think you quoted about 16% of your volume now is running through X-Pro, and it's accounting for 60% or nearly 60% of your portfolio trades. Just maybe if you can just comment on where you ultimately wanna get that to, or you think you can get X-Pro to in terms of your overall volume. And then, you know, to what extent is portfolio trading a big part of that process, or, you know, if the market does shift back away from portfolio trading over time because of higher credit spread or volatility, how do you see that algorithm working within X-Pro of getting more of your volume on and having that expand your overall market share? Great question, and obviously, X-Pro is designed to replace our legacy user interface for our clients, so we intend to put X-Pro in front of all traders and all clients globally. X-Pro, you'll see X-Pro rolling out in Europe and throughout the international client base this summer. So we're excited to continue the rollout of X-Pro just for traditional RFQ, but more importantly, for portfolio trading. As I mentioned, we, you know, we started that rollout for what we call power users. That's where we see the biggest benefit. The workflow efficiency designed in X-Pro does help those users. And we do think that the portfolio trading tool is also a benefit. Rich mentioned some of the features and the benefits of longer, larger line item capacity on X-Pro. We do see the biggest opportunity for X-Pro is really this summer and the quarters ahead around the block trading solution. One of the biggest feedbacks that we hear from our clients and traders are information leakage with regard to all-to-all, and X-Pro allows our clients to easily engage dealers directly, either one-on-one or multi-dealers in an RFQ. That's being rolled out and should really. We're targeting, call it the $3 million-$10 million size bucket, which is a very large part of the trades market here in the U.S. So really, X-Pro is designed to touch every trader, every client, and across all our products, when we're done with the overall rollout. More importantly, as I mentioned, X-Pro does allow us to move at a quicker pace from a development and delivery standpoint, and that's the most exciting part about this new technology, and as we roll out across the client base. Yeah, that Rich, anything to add? Yeah. Rich, anything to add? Yeah. That's great. Actually, that leads into a second follow-up question on that, and that's the large block sizes. So I think you quoted that last time, at like 30%, 6% of the market is trade sizes over $5 million. That's obviously been the area where you know more has been done with voice over time, and it's been tougher to crack. So I guess what is your view on that part of the market electronifying over say the next you know call it three years or so as sort of the next leg of the electronic electronification of the market? Yeah, Brian, it's Rich. I mean, we think it's going to increase. And you know, I've said before, we're going to see a high penetration rate across all sizes. Some of that might just be trade processing and, you know, more efficient ways to do a bilateral trade with a known dealer, and that's fine. That's part of what, you know, this portion of X-Pro is designed to do very efficiently. But we want to make sure that we've got a way to... When a trader puts their orders into our system, that they have a variety of ways that they can trade that. Whether it's going to be recommending to them who the likely dealers are to engage, whether it's just processing a trade bilaterally with you know, a trade that's been executed, you know, maybe on the phone, let's say, or it might be engaging, you know, in open trading in some way with clients that we're able to identify, who are likely to engage with that party on the trade. So think of it as a central point where that trader can access all of the tools that MarketAxess has available, the different ways of trading across our, you know, variety of protocols, all from one place where they manage their order. That's the key part of it, is once their order is in X-Pro, they can, they can kind of launch off in these different directions, depending upon what's available, what's best recommended for that, how they want to operate, all from one point. ... which is a little bit different than the way our legacy system works, which is a bit more siloed in the capabilities and, you know, making the trader work a little harder to tap into the capabilities. With X-Pro, it's all central and available right from their order. And Brian, I would just add that, you know, we hear regularly from our clients that they obviously want to do more with less. They're not hiring traders on their desks. That's a trend that we've seen. And this area of the market is a fairly inefficient area from just a workflow perspective. You can imagine using phones and chat as not being the end result of this market evolution. What we're trying to do is replicate their experience on phone and chat, minimizing information leakage to just the right important dealers in that CUSIP. Both the data and the pre-trade analytics and the content where we're collecting and pumping through X-Pro will help those traders, one, identifying the size of their order that the market can consume, and two, the best dealers to interact with for that specific order. So we're pretty excited about the opportunity to convert a sizable portion of what is today phone and chat market onto the electronic platform. It's definitely one thing we see from portfolio trading and the demand for portfolio trading is the need for immediacy, certainty, and efficiency of workflow is high, at an all-time high among our clients as they see more capital flowing into their own platforms. They are not hiring traders to solve that influx of capital. Mm-hmm. No, that's great. That's great, color. color. Thank you. Our next question comes from the line of Michael Cyprys from Morgan Stanley. Please go ahead. Great. Thank you. I have a question on Pragma, maybe changing topics away from PT. I was hoping you could update us on the progress there with Pragma. Maybe you can elaborate on the contribution in the business, how you see the growth path ahead, and strategically, maybe you could update us on how you see this being strategically additive to the firm. Sure. Obviously, we closed on the Pragma transaction in the fourth quarter, and we're quickly integrating Pragma into the broader MarketAxess technology framework. We're excited about some of the technology synergies that we're seeing. Obviously, Pragma has been a key ingredient to the launch of the first credit algo in the credit space. So we're excited to see that algo and the demand and the feedback that we're getting from clients on the algo. More importantly, Pragma, we're seeing opportunities to use Pragma technology throughout our technology footprint. Right now, Pragma is consuming some of our automation suite. So, what we want to do, the goal of the current integration is to have both algos and automation all be part of one suite of offering. So you can get basic auto RFQ, basic auto responder, and a suite of algos all within the same API or the same suite of selection of products. So pretty excited about the integration of Pragma in automation. The next piece of integration that we see playing out is the Pragma EMS solution. It is able to maintain order state and control orders and connect multiple destinations. Obviously, we're using the various protocols within MarketAxess, but we do see an opportunity for that EMS technology to be deployed further in the market. So we see further integration of Pragma. It's an important technology acquisition for us, and we're actually seeing higher benefits of the synergy of that technology. We also plan on using Pragma in our dealer-to-dealer business. We think there's interesting solutions, not only automation that we're rolling out for dealers, but new protocols in that dealer suite of products as well, particularly around the mid-market matching solutions that we see in that market. So, it's still early days for our excitement around the Pragma acquisition, but we definitely see it becoming a more important footprint in the overall technology footprint of MarketAxess. Great. Just a follow-up question, if I could, on Emerging Markets. Great to see the renewed strength, particularly in the local markets, EM, particularly in April. Just curious what you're seeing there. Maybe you can elaborate a bit, more broadly on the EM initiatives that you have and any particular regions that you're particularly more focused on, and where you see scope for more innovation ahead in EM? Sure. On the EM front, pretty excited about the growth that we've seen in EM in Q1. Obviously, we were seeing lower volumes in 2023, and we weren't expecting that to change, but it did change, and obviously saw record volumes, record ADV, and obviously record commission revenue up almost 11% in Q1. One interesting area that we've seen growth, and it's really as a result of growth of protocol, and that is, our block trading ADV is up almost 34% year-over-year in the first quarter. So we're excited about that. that. That's that block trading growth certainly a predictor of hopefully further block trading growth across all our products. The other area of sizable growth was our local markets. Obviously, they are up 30% in Q1 year-over-year. The local markets, obviously, the bigger market opportunity in the EM market, close to 80% of the overall volume is estimated to be within the local markets. And then areas of excitement, obviously, we've seen our APAC volumes grow year-over-year. APAC was up 33% in Q1, and APAC was up even further in April, almost up about 40%. Out of APAC, we're seeing APAC is a key driver of our EM volume. Our local market volume, in particular, was up as from APAC, almost 60%. So that international growth and our international expansion is reaping benefits across our our EM market, particularly the APAC growth rates that we were seeing in Q1, and then that continued into April. Great. Thank you. Our next question comes from the line of Alexander Blostein from Goldman Sachs. Please go ahead. Hey, good morning, guys. Thanks for taking the question. Just one for me. You spoke extensively today and just over the last couple of quarters that the path towards more of sort of bridging the gap in IG with some of the market share is likely going to come from PT and a dealer-initiated RFQ. Can you talk a little bit about the pricing and the, you know, fee per million in both of those? I think you kind of hit on the PT a little bit, but just how does that compare to the kind of $150, $160 that you're running at a credit right now? And do you expect that your initiative there to put more pricing pressure on that part of the market as a whole for other competitors as well? Thanks. Yes, sure, Alex. Hi, it's Rich. And yeah, I did mention about the fee capture in PT being lower. You know, with dealer business, which tends to be... It's an Open Trading, it's an all-to-all type of business, where we're delivering more value, our fee capture is relatively higher there. And, you know, one of the things I should note is, you know, when we deliver liquidity to dealers, about 30% of the time, that comes from buy-side firms, not just other dealers. And that's some of the most valuable, you know, connections that we can make, and allows us to charge a relatively higher fee, you know, for that. So I think the, you know, the prospects for fee capture in the, in the, dealer-initiated side of the business is quite promising. You know, we should note, and, you know, it was pointed out during the prepared remarks, that we see plenty of opportunity for growth in the traditional client-to-deale in comp business, leveraging open trading and being able to make those connections between clients directly with each other and to other dealers and things. And that remains also attractive from a fee capture perspective. So the most challenging area, the lowest fee capture is definitely on the PTs. It is very much a workflow solution and less about the benefits that we can deliver as a marketplace. And it's when we're operating as a marketplace and connecting, you know, the thousands of participants in it, that gives us the opportunity for richer fee capture. I gotcha. Thanks. Our next question comes from the line of Ben Budish from Barclays. Please go ahead. Hi, thanks for taking the question. I just wanted to double-check on the dealer-initiated segment. I don't think you talked about how much of that, of your business that comprises today. So can you maybe talk about that and, and where it's been in the past? And then looking forward, if you think about how much of that piece can electronify versus, you know, the broader market in IG, how, how do you think about the, the potential there versus, you know, client-to-dealer and some of the other, trade types? Thank you. Yeah. Hi, Ben, it's Rich again. And, no, we definitely feel strongly about our opportunities there, and, and, you could say, roughly speaking, it's about, about 30% of our of our RFQ activity is coming from, from dealers, initiating on the RFQ side. So, that has room to grow. And, you know, again, as I was just saying, it's a promising area of, of fee capture. That's, that's right now using our RFQ protocols. As we introduce, our matching solutions in the market, which we know has been very attractive, to firms, and also our order book, Live Markets, is another area that we think is going to be attractive to that, to that user base. It's pretty, it's pretty significant, so... Got it. That was all for me. Thank you. Our next question comes from the line of Eli Abboud from Bank of America. Please go ahead. Hi, good morning, and thanks for taking the question. Can we have a little bit more of an update on Adaptive Auto-X? I think last quarter you mentioned that 13 clients were using it. How has penetration progressed, and what can you share about the early feedback? Thanks. Sure. Thanks, Eli. Yeah, we're pretty excited about the innovation of Adaptive Auto-X. As I mentioned earlier, the first client algorithm launched in the credit space. Right now, we have 25 clients live on Adaptive Auto-X. There's about 30 clients approved, still waiting to be onboarded. And then there's more, more obviously in the pipeline. We also are excited about a new launch of an algo this summer, really a dynamic liquidity-taking solution. The feedback has been quite positive, the feedback from clients. We have some very large clients, waiting in the queue, in the pipeline. We've obviously been showing demos of the product to all our clients, and the feedback has been quite positive. Again, it's still early days with this product rollout, but we're just seeing a healthy outcome in terms of execution quality, both in terms of avoiding spread, as well as, you know, with some of the larger blocks being sliced into smaller sizes. We're also seeing better trade execution quality as a result of eliminating, limiting market impact from executing larger block sizes. So, again, early days with the product, but pretty exciting feedback, and obviously, the demand is quite high, given the size of the client onboarding that we're dealing with right now. Got it. And you mentioned the block trading had a particularly strong quarter earlier. How much of this is attributable to this early progress on Adaptive Auto-X, or is it other technologies and protocols that are driving that progress so far? Really, the block trading that we're seeing the success in, particularly in EM, we offer a Request for Market. That has been an offering, a protocol that we launched quite some time ago, and that's really been driving some of our block trading experience here. And as I mentioned, in EM, block trading was up 34%. The other areas, obviously, in EM, is local markets. We're seeing larger block size in local markets as well. And then I also mentioned in investment-grade, block size running through our current platform is where we're seeing an increase in block trading. We also mentioned that our intent is to roll out X-Pro for high touch. Again, that's targeting the block size market, and that's still to come in the coming quarters. So a lot of opportunity around the block size solution, both from algorithms, you know, breaking down blocks, as well as solving blocks for electronic trading by just reducing information leakage for those size trades. Awesome. Thank you. That concludes our Q&A session. I will now turn the conference back over to Chris Concannon for closing remarks. Great. Well, thank you for joining us today. We're exceptionally excited about the things that we're building and rolling out this summer, and we look forward to updating you on our progress at our next quarter call. Thanks, everyone, for joining. Ladies and gentlemen, that concludes today's call. Thank you all for joining. You may now disconnect.