Ladies and gentlemen, thank you for standing by. Welcome to the MarketAxess First Quarter 2025 Earnings Conference Call. At this time, all participants are in a listen-only mode. Later, we will conduct a Q&A session. If you'd like to ask a question during that time, please press star followed by one on your telephone keypad. As a reminder, this conference call is being recorded on May 7, 2025. 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 2025 Earnings Conference Call. For the call, Chris Concannon, Chief Executive Officer, will provide you with an update on our strategy and our trading businesses, and Ilene Fiszel Bieler, Chief Financial Officer, 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 31st, 2024. 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 2025 financial results. I am pleased to report that we are seeing the benefits of our technology investments in our First Quarter results, as shown on Slide 3 of my strategic update. In terms of revenue generation, our product and geographic diversification continue to pay off with record commission revenue in our international and new product areas like emerging markets, municipals, and U.S. government bonds. We are very pleased with the growth we generated in U.S. government bonds in the quarter, including a single-day trading record of $102 billion on April 9th. The strong growth in U.S. government bonds is being driven by increased velocity, but also by more institutional clients leveraging our rate Algos even during volatile periods. These clients are leveraging new Algos to work larger block orders with low market impact over a specific time range, and the results have been impressive. Clients are executing billions in treasuries with 97% passive execution rates. That means institutional clients are not crossing the spread 97% of the time using our Algos. During the week of April 7, clients leveraged our U.S. Treasury Algos to execute $36 billion, or 11% of our trading volume that week. We expect to continue to expand our algo suite for rates, and we anticipate launching an enhanced RFQ solution in the near future. Services revenue growth was also strong at 7%. In terms of expenses, we continue to show cost discipline, with expenses up only 2%, which also benefited from lower variable costs during the quarter. Last, on the capital front, we have been more opportunistic with our share repurchases as we move beyond just offsetting dilution from stock-based compensation. Our challenge has been U.S. credit market share across key protocols, which partially offset the growth we generated in other areas in the quarter. However, the exit rate in March was very encouraging, with U.S. high-grade estimated market share increasing to 20%, the highest level since December 2023, driven by strong market share gains across the Portfolio Trading and dealer-initiated channels. On Slide 4, we highlight the key performance indicators for our trading businesses across channels in the first quarter. As this slide clearly shows, except for U.S. credit market share, the key performance indicators across our platform are largely green in the quarter, reflecting the underlying fundamental strength of our business. First, across our client-initiated channel, we generated record U.S. Credit ADV of 2% to $9 billion. We saw strong growth in international products with record ADV of $6 billion, up 11%. EM local markets are the largest opportunity in EM from an addressable market perspective. We produced record local markets ADV of over $1.5 billion, up 8%. Our performance in municipal bonds is also a positive example of our product diversification strategy, with ADV up 42%. We are very pleased with the liquidity coming from our partnership with ICE Bonds, which started with municipals and has now expanded to U.S. high yield and U.S. investment grade. We experienced another quarter of strong growth in automation with record trade volumes of $110 billion, up 17%. We had 249 active automation clients in the first quarter. We now have 80 clients enabled for our Algo suite, up from 25 in the prior year. Open Trading ADV hit a record $5 billion in the quarter, an increase of 8%. Open Trading share of total credit was 38% in April, and Open Trading volume hit record levels during the second week of the month across credit markets. Our share of blocks in U.S. high-grade was just over 11%, up slightly from the prior year. In the Portfolio Trading channel, we generated record total PT ADV of $1.3 billion and record U.S. credit PT ADV of $1.1 billion, with market share of 19%. Last, in the dealer-initiated channel, dealer RFQ and MIDEX ADV was a record $1.9 billion, representing a 45% increase over the prior year. As promised on the last earnings call, on Slides 5 and 6, we want to update you on how we are executing across the three critical channels we are tacking to grow U.S. credit market share. First, in the client-initiated channel, we made progress with our block trading solution. We registered record total block trading ADV in U.S. high grade, emerging markets, and euro bonds in the first quarter. Year-to-date through April, block trading in U.S. high grade is running up 27%, U.S. high yield is up 19%, emerging markets is up 22%, and euro bonds is up 71%. Our cumulative block trading volume since the launch of our targeted block trading solution in emerging markets and euro bonds was $4 billion through April 2025. We are rolling out our full high-touch block trading solution in U.S. credit to our broader client base as we speak. This is really exciting because we are delivering a click-to-trade solution where the trade is against a dealer AX or an indication of interest, and the trade goes direct to the dealer without information leakage. This strong performance was driven by our client sales outreach we have been doing for our targeted block solution. Next, in the Portfolio Trading channel, which is a very important part of the market, we generated record levels of Portfolio Trading ADV with strong increases in both U.S. high -grade and U.S. high yield estimated market share in Q1. U.S. high-grade Portfolio Trading market share was 19% in the quarter, up 520 basis points over the prior year. U.S. high-yiel d market share was 18%, up 690 basis points versus the prior year. Year-to-date through April, U.S. high-grade Portfolio Trading estimated market share is running up 310 basis points compared to full year 2024 levels, and U.S. high yield is running up 260 basis points. Very strong progress with the Portfolio Trading channel. Last, in the dealer-initiated channel, we are beginning to see progress as we prepare to launch a new MIDEX Solution later this quarter in U.S. credit. Dealer RFQ ADV was a record $1.8 billion, with record ADV across U.S. high grade, emerging markets, and municipal bonds in Q1. U.S. high-grade dealer-initiated estimated market share increased almost 100 basis points year over year. We are very excited about the launch of our new MIDEX solution in the second quarter. It is a very streamlined, API-delivered, high-performance matching solution for dealers. Slide 7 highlights our strong growth in April, continuing the trend of March on a significant increase in credit market volatility. With the recent increase in volatility, we have seen spreads widen, liquidity needs increase, and the velocity of trading increase. We saw trading ADV grow 68% year over year to a record $57 billion, driven by strong growth across all products, including 32% growth in total credit ADV to a record $18 billion and 93% growth in total rates ADV to a record $39 billion. Most importantly, U.S. high grade market share of 19.4% was 120 basis points higher than the prior year. We also saw a significant increase in ETF market-making activity in U.S. high yield in April, the highest level since November 2023. Before I turn the call over to Ilene, let me make a couple of observations about the market, the recent volatility, and how our platform is responding. First, the velocity of trading in U.S. high grade has risen to levels we have not seen since 2011, which is great for our market and further electronification. Portfolio Trading, a key protocol that has fostered increased velocity, has continued to perform at high levels despite the increase in volatility. Portfolio Trading was approximately 11% of the U.S. high -grade market in April, in line with prior periods, reflecting its resiliency as a risk transfer tool. Last, one of the most exciting aspects of this increase in volatility has been how our clients are increasingly willing to execute greater size through automation during times of volatility. Our largest and most sophisticated clients continue to increase their automation risk tolerance in March and April, with over 2,500 automation trades of $2 million or above over the two months, the highest two-month period ever. Also, we generated record U.S. high grade block count leveraging AutoX during the March and April period. We believe that our strong results were driven by the progress we have made with our new initiatives, as well as the significant increase in market volatility. Now, let me turn the call over to Ilene to review our financial performance. Thank you, Chris. Turning to our results on Slide 9, we provide a summary of our first quarter financials. We delivered total revenue of $209 million compared to $210 million in the prior year. Looking at each of our revenue lines in turn, commission revenue decreased 2%, largely driven by lower fee per million and market share in U.S. credit, partially offset by strong market volumes on an increase in volatility beginning in March. Services revenue increased 7%, driven by a 9% increase in information services revenue to $13 million. The increase was driven by new contracts as we continue to experience strong adoption across our data product suite, especially CP+. Post-trade services revenue of $11 million increased 3% versus the prior year. Technology services revenue of $3 million increased 14%, driven by higher Pragma-related license and connectivity fees. Total other income increased a little over $3.5 million due principally to higher interest income of approximately $1 million, higher mark-to-market gains on our U.S. Treasury portfolio of approximately $1 million, and lower levels of FX losses of approximately $1 million. We've reported diluted earnings per share of $40, or $87 per share excluding notable items in the quarter, which included a new reserve, which we established for uncertain tax positions. This reserve is being established for prior periods through the first quarter of 2025, based on a recent ruling in a case that MarketAxess was not a party to that was not supportive of the company's historical tax filing position. This decision reversed a lower administrative court's ruling that had been supportive of the company's position. The go-forward effective tax rate will move higher to accrue for the expected increase to the tax reserve in 2025, and I will provide updated guidance on the effective tax rate later in my presentation. On Slide 10, we provide more detail on our commission revenue and our fee capture. Total commission revenue was $181 million compared to $185 million in the prior year. We experienced growth in credit commission revenue across emerging markets of 6%, Euro bonds of 5%, and municipals of 6%, which helped partially offset a 7% decline in U.S. credit commission revenue driven by lower fee per million and lower market share. The reduction in total credit fee capture both year over year and quarter over quarter was driven principally due to product mix. On Slide 11, we provide a summary of our operating expenses. First quarter operating expenses of $120 million increased 2% compared to the prior year. The lower level of expense growth was principally driven by continued cost discipline and lower variable costs due to the slower start to the quarter in January and February. While the pace of operating expenses was lower in the quarter, we have continued to invest to drive future growth. Headcount was flat year over year, but down from 891 at the end of 2024. On Slide 12, we provide an update on our capital management and cash flow. Our balance sheet continues to be strong, with cash, cash equivalents, and corporate bonds and U.S. Treasury investments totaling $642 million as of March 31, down from $699 million at the end of 2024. The decline in cash was due principally to the annual payout of full year 2024 cash incentive compensation in the quarter, in addition to the share repurchase activity during the quarter. We generated $344 million in free cash flow over the trailing 12 months, an increase of 5% over last quarter. We repurchased 251,000 shares year-to-date through April 2025 for a total of $52 million, including 188,000 shares repurchased during the first quarter at a cost of $38 million. As of April 30th, 2025, $173 million remains on the board's authorization. We believe we are striking the right balance of investing to drive future growth while at the same time being disciplined stewards of capital. Before I turn the call back to Chris, there is no change to our previously stated full year 2025 guidance for services revenue and capital expenditures. Based on the progression of our operating expenses in the first quarter, we are refining our full year 2025 expense guidance and now expect to be at the low end of the previously disclosed guidance range of $505 -$525 million, including the impact of RFQ Hub, which I will discuss in a moment. I would remind you that variable expenses can change depending on operating conditions. While we are refining our expense guidance, we are continuing to strike the right balance of investing to drive our future growth. Additionally, given the notable item discussed earlier, we are updating our full year 2025 effective tax rate guidance range. On a GAAP basis, the effective tax rate is expected to be in the range of 41%-42% due to the reserve I mentioned previously. The effective tax rate, excluding the notable item in the first quarter, is expected to be in the range of 26%-27%. Before I turn the call back to Chris for closing remarks, we expect to close the RFQ Hub transaction later in May. This will bring our ownership to approximately 90%, and we will begin consolidating RFQ Hub in our financials. For full year 2024, RFQ Hub revenue was a total of $13 million, and we expect revenue to grow between 15% and 20% in 2025 as we integrate the offering into our product suite. We expect to include most of RFQ Hub revenue in other variable transaction fees within total commissions, but we also expect approximately $730,000 in connectivity fees to flow through our technology services line. The incremental expenses related to the consolidation of RFQ Hub are expected to be in the range of $7 -$9 million for 2025 after the close and are included in the new full year 2025 expense guidance I just noted. For modeling purposes, we expect approximately $2 million in incremental depreciation to flow through the depreciation and amortization line in 2025. Now, let me turn the call back to Chris for his closing comments. Thanks, Ilene. In summary, on Slide 13, we made solid progress with the key new initiatives that will drive improved market share in U.S. credit in the remaining quarters of 2025. We generated record levels of block trading across U.S. high -grade, emerging markets, and Euro bonds, which have benefited from the launch of our targeted solution. Our Portfolio Trading solution continued to hit record ADV trading levels, and our market share in U.S. credit continues to expand. Record dealer RFQ ADV reflects our increasing focus on this important channel with record ADV in U.S. high-grade, emerging markets, and municipals. Our strong progress across the client-initiated, portfolio-trading, and dealer-initiated channels, combined with the increase in credit market volatility, should help drive higher levels of market share in U.S. credit in the coming quarters. Now, we would be happy to open the line for your questions. We are now opening the floor for Q&A session. If you'd like to ask a question, please press star followed by one on your telephone keypad. Kindly limit your questions to one question only. If you wish to go back to the queue, please press star one again. Thank you. Your first question comes from the line of Chris Allen of Citi. Your line is now open. Morning, everyone. Thanks for taking the question. I wanted to unpack, hoping you could unpack the outlook for increased share gain moving forward. Can you help us frame out what are realistic expectations here, how dependent are share gains on the environment continuing at some of the recent levels? and how do you think about the impact of new capabilities on share gains from here? Great. Thanks, Chris, for your question. First, I'll address the market environment because the current market environment that we've been experiencing, certainly in March and leading into April, is favorable to our business model. We are obviously seeing in this environment a lot of uncertainty. I would call it an environment of uncertainty, whether it's economic uncertainty, geopolitical uncertainty, and certainly questions around direction of rates. Obviously, the market is now predicting rates will head lower, which could be favorable for us. Certainly, any rate moves is largely favorable to the turnover that we see in the bond market. Most experts right now are predicting higher levels of volatility, not returning to those lows that we saw certainly in 2024. It's not just a business model on tweets about tariffs going forward, but we do see higher levels of volatility in the market. Spreads remain slightly widened relative to what we saw in January and February, and our clients' liquidity needs have risen since last year. We are hearing more and more from clients about need for liquidity and need, in particular, for alternative liquidity. That is all favorable to our business model. From a market environment, the one piece we have not seen is credit quality challenges. If there are any macroeconomic impacts, we could expect to start hearing about credit quality, which would have an impact on spreads and obviously change investor outlook around portfolio holdings, which could increase turnover. With regard to our growth opportunity in this market, one, I think the market opportunity that we have is expanding because we have changed our model to be what we call protocol agnostic by delivering clients multiple protocols to solve different execution needs for different sized orders, different shaped orders like Portfolio Trading, block trading, and then also addressing the dealer-to-dealer market. We think our opportunity for growth is increasing given both the market environment and the deliveries that we're making in this year. In terms of this quarter, we're excited about the number of product releases that we see in the coming quarter as well as the future quarters. We've made sizable investments last year, and we're feeling the impact of those investments as we roll out additional items. First, as you heard in my prepared remarks, we're launching our High-Touch Block Trading Solution on the back of our already launched Targeted Block Trading Solution that we launched in emerging markets and euro bonds. That is literally launching next week. We are super excited about being able to deliver a block solution to our clients where they can trade directly with dealers. We also mentioned the launch of MIDEX coming this summer, an exciting new addition to our protocol mix for dealers. This is a dealer-targeted solution to address dealers' needs to trade at mid-market as they exit their inventory. We're also rolling out Portfolio Trading into Europe this summer and excited about the benefits that X-Pro brings not only from a Portfolio Trading perspective, but also just a workflow perspective and the ability to deliver data and analytics to clients as we roll that tool out, not just in Europe, but further rollouts into EM as well. When I look at this environment, Chris, and I look at the number of product releases that we have coming in the current month, in the coming months and quarters, I'm just very excited about our opportunity to grow, particularly around what you've seen in Portfolio Trading, the dealer-to-dealer, but also the block trading solutions that we've delivered to the market. Feeling very good about both market environment and our delivery schedule for forward growth. Your next question comes from the line of Alex Kramm of UBS. Your line is now open. Yes. Hey, good morning. Just staying on the environment a little bit, and sorry to slice and dice the month or the environment, but some people talk about April almost in two halves, and you yourself mentioned some of the record days in the early part of the month. Just wondering what you saw maybe in the first half and second half, given that it was clearly very, very elevated and very good, but curious what kind of things kind of stuck in terms of client behavior and share and where maybe things started normalizing a little bit just as we think about the second quarter from here? Thank you. Sure. Obviously, we saw accelerated market velocity in April, seeing some records across a number of protocols, but overall market volumes were up substantially in April. High yield in particular, we saw record market volumes up 42% year-over-year. Just sizable velocity in the market. What's very encouraging is that the market is able to sustain that level of velocity. Without electronic trading and the broad electronic trading penetration, you just would not be able to see that level of market turnover. We continue to see that velocity throughout the month of April and into May. We are encouraged that overall turnover remains heightened. As you mentioned, Alex, volatility spiked and did come down, but it never rested back at a low point. We are seeing even at lower levels of volatility relative to the beginning of April, we are still seeing a vol stay at a somewhat heightened level. More encouraging spreads remain at a heightened level relative to January and February. The market environment, while we have come off our peak volatility, and those were quite some peak spikes during the tariff wars back and forth, is still a very attractive market environment for our business model. We continue to hear from clients both in high yield and EM asking for liquidity needs and suggesting that the liquidity in the market is not robust. That is always encouraging because they tend to lean on our Open Trading alternative liquidity in that type of market environment. Encouraged by the current market environment, while it is not at the peaks that we saw in early April, it is still a relatively sustained volatility that we are seeing in the market. That is before we are seeing any rate adjustments or any challenges, macroeconomic challenges that could come. Fair enough. Thanks. Your next question comes from the line of Kyle Voight of KBW. Your line is now open. Hi, good morning. Maybe if I could just ask a question on fee capture and particularly wondering if you could update us on what you saw for high-grade fee capture in Q1 and the high-grade capture number that's embedded in the April metrics you released earlier this week. I'm just wondering if you could help us understand really what's causing the year-on-year and the quarter-on-quarter declines that we saw because I think at first glance, higher Open Trading share I thought would have been incrementally helpful. I know there's a number of other factors at play with PT growth and block growth, for example, which could continue as we're looking at launching the U.S. block solution into the second quarter? Great. I'll start and let Ilene fill in some of the gaps. First, what I'll do is take a step back and talk about fees holistically. I think it's a good topic. Just given what I talked about previously around being protocol agnostic, we are investing heavily in delivering multiple protocols to both clients and dealers. With that level of focus, you saw performance in the first quarter, and that performance continued into April. These are two market protocols that have grown in the overall market. Portfolio Trading and the dealer-to-dealer business has grown substantially year-over-year and over the past couple of years. Portfolio Trading is somewhere around 10% of the overall market, and the dealer-to-dealer market is somewhere around 30% of the market, which is up sizably from prior years. We are investing heavily in those areas. Those obviously come at a lower capture rate. With any success in Portfolio Trading or dealer-to-dealer, you tend to have pressure on your fee capture as well. What was interesting in April, we did see heightened levels of Portfolio Trading in high yield, literally record levels of Portfolio Trading as high as 15% for the full market, which we have not seen before. What we heard from clients was just large selloffs required because of large redemptions coming into funds, both in managed funds as well as ETFs. Those heavy redemptions in high-yield funds led to a lot of clients choosing to use PT as a liquidity solution. That had us, in turn, have record levels of Portfolio Trading. Those items are impacting our fee capture, but they are growth items for us. While they come in at a lower fee capture, we are encouraged by growing revenue by delivering new protocols and new solutions to our clients. The nice thing about where we're headed, things like block trading and growing further in the Portfolio Trading solution space, those are areas that have low variable costs and, in fact, some come with no variable costs. They are higher margin businesses, but they can be seen as lower capture rate. For example, block trading rolling out can be delivered at a slight discount to our traditional RFQ, but it comes with no variable costs for us. We are headed into a place where we're delivering more protocol, some of which comes at a lower capture rate, but some of which has lower variable costs associated with it. Ilene, you want to add something? Yeah. Sure. Kyle, let me give you a little bit of the puts and takes that you mentioned in terms of the April versus March, right? We saw that increase in fee per million for about, which was about $4, right? That was really driven by more favorable product mix. If you think about it, we had increase in high-yield activity. That was worth about $2. We had benefit from higher duration of about $1 to your IG question, right? We saw weighted average years to maturity out a little to about 8.7 in April, 8.7 weighted average years to maturity. In terms of the mix of business, and you're right, Open Trading activity was up about $4, but we saw that partially offset by the increase in Portfolio Trading in the month, which went the other way by about $3. Hopefully that gives you the puts and takes. Your premise is right, but it kind of goes back to what Chris was saying, which is that as we're continuing to gain share and as we're continuing to do more volume in some of the other newer protocols for us, these are incremental revenues, but they do come in at a lower fee per million. Great. Thank you very much. Your next question comes from the line of Michael Zezas of Morgan Stanley. Your line is now open. Hey, good morning. Thanks for taking the question. I just wanted to circle back to Portfolio Trading. I was hoping you could elaborate a bit on what you see driving the strength across your PT solution. I believe you had brought some new innovation with, I think it was a net hedging for IG embedded in PT in the quarter. More broadly, maybe you could talk to some of the feedback and traction you're seeing with PT. As you look out over the next 12, 24 months, where is your scope for continued enhancements and innovation with your PT solution? Thank you. Sure. I appreciate the question. Obviously, we've been talking about our investment in Portfolio Trading over the past year, and we are seeing the returns as a result of those investments. There are a number of enhancements that we have delivered. Obviously, our new X-Pro platform just makes the workflow smoother, allows our clients to have more line items, see pre-trade analytics, evaluate the portfolio that they're loading, and pick and choose winners and losers that are in those portfolio trade portfolios that can improve price. There is a way for clients now to evaluate what's costing them price in the context of the portfolio. All of those enhancements were delivered through X-Pro. We're now seeing 92% of portfolio trades on X-Pro. It is clearly the platform is winning the market share in the portfolio trade environment. The other places, as you mentioned, delivering and having clients sign up for all of the net hedging, auto spotting, all has been delivered, and the feedback has been quite positive. Ultimately, Portfolio Trading will come down to analytics, data and analytics, and that's where the constant demand is, is understanding when's the right time to trade a portfolio versus when's the right time to trade a list via RFQ. Those are important questions we're hearing from our clients. Optimizing the portfolio, the more correlated you are to an ETF, the better pricing mix you get from dealers. And then optimizing your size within a portfolio. If you have block size line items, you can degrade your pricing in PT. So all of that requires pre-trade analytics, and the demand for pre-trade analytics continues to grow. We are obviously planning on enhancements in the coming weeks and the coming months for PT solutions. We are excited about what we achieved in Q1, which followed into April, and what is ahead for Portfolio Trading. Great. Thank you. Your next question comes from the line of Alex Blostein of Goldman Sachs. Your line is now open. Hey, thank you. Good morning. Another one around PT for you guys. I was hoping you could break down the composition of the ADV in the quarter between the single dealer and the in-comp ADV that you cited. I heard the discussion around fee per million, that all makes sense. Can you help us just frame what the fee per million currently stands today at Portfolio Trading and, I guess, dealer RFQ as well, since these are two of the larger protocols that are growing right now for you guys? Thanks. Alex, in terms of sort of how we're thinking about Portfolio Trading, and we had obviously you saw in April, the overall market share there was in investment grade was pretty positive. We saw the in-comp was 19.3%, and it was 19.4%, I believe, all in. I just want to double-check that for you. That is kind of, again, positive. If you think about the market share in high yield, that was in-comp 13.5% and 14.1% in terms of all in, right? Some real positive moves there in terms of how we were doing with high yield and investment grade. We know, though, that if you think about Portfolio Trading in general, those come in at a lower fee per million. We know that the single dealer is really not something that we have fee per million on, and that's not really included in that because those come in without it. I guess this is all to say, as we continue to see investment grade and high yield shares pick up and more of that becomes Portfolio Trading, we're going to expect to see continued pressure there on the overall fee per million. Again, it's really good for share. It's good for what we're looking to do overall. Chris has talked about how we really look at block trading as something that's a real opportunity for us incrementally. The Portfolio Trading and the block trading folks are really often the same desk. This is something we're really pleased about. We're pleased about our progress, but we know that this is going to come in at some fee per million pressure. I'll just add, Alex, because it's a great question because that's an area where obviously we've been investing and continue to invest in. In the past, we have said that expect month-over-month volatility in market share because of PT. Single dealer PT obviously can swing share. Those are what we call the mega PTs, over $1 billion in a single PT. They do swing share. If you look at our high-yield market share, it increased sizably in-comp, so total in-comp, but it had a material pickup because of a single dealer PT during the month. That point is it will have an impact on our capture month-over-month. The dealer-to-dealer business, as we invest in that, will also continue to have further pressure on our fee capture. Our goal is to grow revenue and grow it through all the different protocols. We price our protocols based on the market of the protocol, not our overall fee capture. We are being very mindful of what that market looks like and when we're pricing into it. The good news on fee capture is our client-to-dealer RFQ business and fees have been quite stable and remain stable as we speak today in May. We feel very good about the stability of pricing across our core business, which is traditional RFQ in high-grade, high-yield, and now EM. Alex, just to follow back, because I think you also asked just about PT share in addition to high -grade and high -yield. If you look at April PT share, that was in-comp at about 20.5%, and the single -dealer piece of that was about 1.3%. The overall market share there in April for us was about 21.8%. That was also a really good positive indication. Great. Awesome. Really helpful stats. Thank you, guys. Next question comes from the line of Jeff Schmidt of William Blair. Your line is now open. Hi, good morning. What have you learned from the rollout of enhanced block trading in EM and euro bonds as you look to launch that in the U.S.? Do you see any potential hurdles to adoption here, anything that may be different in this market? Sure. Great question. Again, we launched in EM and Euro bonds, we launched targeted RFQ, a slightly different model from the way folks trade here, particularly in IG and high yield. Targeted RFQ has had a positive response. Obviously, our block trading market share has increased. We saw block trading record volume in EM. Again, that is partly driven by targeted, but also largely driven by clients coming in and trading larger block size on the platform and getting liquidity in our all-to-all solution in EM. The feedback from clients is very positive. They want to be able to trade larger size electronically without information leakage. The concern on information leakage is if you go out to an all-to-all RFQ request, you are leaking, obviously, your larger block size to the broader market. Using a targeted solution protects your information, but allows you to maximize price improvement by marketing it to a few dealers rather than all dealers. As we have been certainly going out to clients in IG here in the U.S. with our high-touch block trading solution, which rolls out next week, feedback has been quite positive. Again, we're competing with the phone and with chat. When it comes to competition, being able to click to trade your workflow for blocks is quite powerful. That feedback has been consistent as we demo the product to clients, and they give us the feedback on the seamlessness of the workflow, the ability to go to a single dealer and engage that dealer fully electronically without going on chat. Both the targeted solution that we launched in EM and Euro bonds is yielding results with our block trading stats, but we're excited about the client feedback we've heard in our high-touch solution rolling out next week. Okay. Thank you. Question comes from the line of Patrick Moley of Piper Sandler. Your line is now open. Yes. Good morning. Thanks for taking the question. We're hearing more and more about these alternative liquidity providers and market makers wanting to expand their presence in the credit market. I was hoping you could just update us on what your conversations with these alternative liquidity providers have been like and what protocols you find that they're looking to utilize most? Your competitor has indicated that they've been very interested in Portfolio Trading. Just curious if that's the case at MarketAxess as well? Thanks. Thanks. Thanks for the question. Certainly, we have seen an influx in demand coming from what I'll call alternative market makers, systematic hedge funds. That influx has been over the last couple of years. Actually, our hedge fund community continues to grow. We continue to see record volume from that community as well as from your traditional ETF market makers. We saw sizable growth, record levels of volume from the ETF market makers and the alternative liquidity providers. We have a strong pipeline of alternative liquidity providers. The number one protocol that they're requesting from us is our all-to-all RFQ solution. They want to be able to price a large client request for price. They want to respond to inquiries, and they can do that anonymously without facing those large clients. The challenge for these alternative liquidity providers, and you find it in Portfolio Trading as well, is many of them are not prepared, and many of the clients are not prepared to face them directly for settlement. The all-to-all traditional RFQ protocol is in higher demand from alternatives. They also typically trade large baskets across a large number of bonds because they're trading against the ETFs. They tend to trade a smaller size across the RFQ landscape. The good news is we continue to see more come. Some of them have come from both the FX and treasury markets and moved into credit, but they continue to grow, and they continue to demand our proprietary data. There are data demands coming from that group because they are largely API-driven, consume a lot of data, and trade a lot of product in a higher velocity level of trading. The key ingredient for them is the anonymous all-to-all solution where they do not have to disclose their name or face any clients from a settlement perspective. Okay. Great, fellows. Thanks, Chris. Your next question comes from the line of Ben Budish of Barclays. Your line is now open. Hi. Thanks for taking the question. This is Chris O'Brien on for Ben. I had a broader question on the capture rate and just kind of thinking more broadly across. I know you said that you price by protocol and kind of what you're seeing in the market there. I was curious how you're kind of positioning your pricing competitively and if there's any way or to the extent there's capacity that you could use that as a lever to drive more share growth moving forward? Great question. Again, we do price by protocol. We think about what the market is requiring from each protocol. I think in the dealer-to-dealer space, that is an area where clients are quite price sensitive. We have certainly adjusted price. With our MIDEX launch this summer, we will be pricing that in the market that requires a lower level of fee capture. We will be targeting that market with what we think is an appropriate price given the demand by dealers. We are not really touching our client-to-dealer pricing. That has been quite stable, and we intend it to remain quite stable. I think it is important to point out that there are other players in the market, smaller players in U.S. credit that have been free for quite some time, and we have not seen any impact in our core business as a result. I think Bloomberg has been free for years, actually, and we do not see any competitive pressures in that area. We feel good about the current pricing levels that we have in the client-to-dealer space. I think where you are seeing appropriately priced product is really in the dealer and Portfolio Trading space. The more exciting piece of the market is really what I call the next 50% of the market, which is the opportunity to grow electronic trading against the phone and chat market. That market is sizable, and it is a quite vulnerable market because it is not ideal workflow for our clients. We hear it continuously from them. They would much rather connect with a dealer and price a bond electronically than type it out on chat to get an execution. That market is obviously an attractive market for us. We think we will attack that market with appropriate pricing. Again, it's a different protocol. We'll require different pricing levels as well. I will say we don't sit here and feel a lot of pricing pressure in this market. I think where all the competition is in the client-to-dealer space is all around workflow data analytics. The biggest pressure that we feel is delivering new product with new execution solutions, with new data, new analytics to help our clients trade better. In the environment we sit in right now, where it's more difficult to trade, clients are only talking about data and analytics, and their demand for data and analytics is growing. We do not talk to our clients about pricing and pricing pressures. Hopefully, that helps. Yeah. Let me just add a little bit to what Chris said, which is if you think about sort of the bifurcation of this in terms of the macro level and on the product mix and trading activity as sort of another level of how you think about our capture, right? On a macro level, a combination of lower rate environment, upward sloping yield curve for high grade, and a higher mix of high yield volume can make a positive difference. We know that the pace of Fed cuts, however, is constantly moving, and that's something you're going to have to factor in. We know the most recent CME FedWatch data, for instance, is predicting three to four cuts this year, but we're going to have to wait and see. Now, back to what Chris was talking about in terms of product mix and trading activity. The growth in PT, we know, has downward pressure on capture. We've been talking about that for a while now. However, if we get back the impact of lower levels of high yield activity that we had seen, and we see more of that on the platform as we've seen volatility return, as we see ETF market makers, clients get more active, that's going to be a positive, right? Chris has said this, but I really want to re-emphasize that our core fee capture protocols for core RFQ have remained steady, pretty steady. It's really the newer protocols that come in at a lower rate, but I really want to keep in mind that we all have to take a look at what does that mean for incremental revenue because that's really what we're driving for. I just wanted to sort of close out with thinking about that in those terms. Great. Thank you so much. Your next question comes from the line of Brian Bedell of Deutsche Bank. Your line is now open. Oh, great. Thanks. Thanks. Good morning. Thanks for taking my question. Just wanted to ask Chris about the rollout of X-Pro into Europe and to what extent do you think that will accelerate Portfolio Trading share? I mean, I think you mentioned 92% of your PT is done in X-Pro now. I guess that's mostly U.S. But how do you think that could influence the rollout of X-Pro could influence the usage of PT on your platform in Europe? I ask this every once in a while, but if you had to guess sort of where you think that 11% market share of PT goes to in the next couple of years, what would you guess? Great question, Brian. Thanks for that question. First of all, taking a step back, X-Pro is part of our technology migration. It's an important part of that migration as we move to modern tech in the cloud with high levels of capacity and, more importantly, the ability to enhance and add data to our platform for our clients. That's a critical ingredient. As I mentioned earlier, it's where all the demand is coming from our clients is not just workflow, but data and analytics that help them improve their execution outcome. The other nice feature about X-Pro is the delivery schedule of X-Pro is much faster. Our ability to roll out new functionality, new data and analytics comes faster in that new tech, and that's why it's such an important ingredient to our tech migration globally. In X-Pro and in particular, the rollout in Europe, which will be exciting because while we've been making gains in both Euro bonds as well as emerging markets, which is largely traded from the European region, having X-Pro add to those gains, we think, is fairly exciting. As you note, our X-Pro users are growing their PT volumes. With the delivery of X-Pro to Europe and onward to EM, we're excited that that Portfolio Trading market share that we're garnering here in IG and high yield will continue to grow into those markets as well. Just because the workflow is easier, the integration of data and analytics to help Portfolio Trading is much easier, and there's lots of enhancements that we can do in the coming months and quarters ahead. We're excited about that rollout and excited about how fast we can deliver once that rollout is in place. That's really the key ingredient. As clients ask us to make changes to functionality, it's much easier and much faster to deliver in that new tech. With regard to my predictions on Portfolio Trading, it's going to be a key ingredient to clients' ability to leverage liquidity in the market. We are seeing more dealers entering the Portfolio Trading counterparty space. I think if you look at high yield and the performance Portfolio Trading had in the volatility of April, that's a market share that I probably wouldn't have predicted, which is 15% of the overall market. It's encouraging that clients are able to leverage that tool and achieve liquidity levels that we haven't seen in this market in the past. It is really all about putting a basket together and having a dealer offset that with the liquidity in the ETF market. The other piece that is important to the growth of Portfolio Trading is we are seeing the growth of credit futures. We are partnered with MSCI on a credit future listed on ICE Futures, so we are excited about that. That will lead to higher levels of turnover in the fixed income market, the successful launch of credit futures, as well as the growth of ETFs. These are all levers that market makers use to hedge large portfolios and large RFQ lists as well. These are all the trends that are all in the right direction for growing Portfolio Trading in the U.S. market as well as in the European and Emerging Markets. Hopefully, that answers your question. Yeah. No, that's great color. Thank you. Thank you so much. I would like to hand the call back over to Chris Concannon for final remarks. Thanks, everyone, for joining us today. We are looking forward to the quarter ahead, and we will talk to you again on the next quarterly call. Thanks again. Thank you for attending today's call. You may now disconnect. Good.