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2Q26 EARNINGS PRESENTATION INVESTOR RELATIONS
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2 EARNINGS PRESENTATION 2Q26 Initial Statements This presentation may contain certain statements that express the management’s expectations, beliefs and assumptions about fu tur e events or results. Such statements are not historical fact, being based on currently available competitive, financial and economic data, and on cur rent projections about the industries B3 works in. The verbs “anticipate,” “believe,” “estimate,” “expect,” “forecast,” “plan,” “predict,” “project,” “target” and other similar ve rbs are intended to identify these forward - looking statements, which involve risks and uncertainties that could cause actual results to differ materially fro m those projected in this presentation and do not guarantee any future B3 performance. The factors that might affect performance include, but are not limited to: ( i ) market acceptance of B3 services; (ii) volatility related to (a) the Brazilian economy and securities markets and (b) the highly - competitive industries in which B3 operates; (iii) changes in (a) domestic and foreign legislation and taxation and (b) government policies related to the financial and securities markets; (iv) increasing competition from new en tra nts to the Brazilian markets; (v) ability to keep up with rapid changes in technological environment, including the implementation of enhanced fun cti onality demanded by B3 customers; (vi) ability to maintain an ongoing process for introducing competitive new products and services, while mainta ini ng the competitiveness of existing ones; (vii) ability to attract new customers in domestic and foreign jurisdictions; (viii) ability to expand the off er of B3 products in foreign jurisdictions. All forward - looking statements in this presentation are based on information and data available as of the date they were made, a nd B3 undertakes no obligation to update them in light of new information or future development. This presentation does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities where such offer or sale would be unlawful prior to registration or qualification under the securities law. No offering shall be ma de except by means of a prospectus meeting the requirements of the Brazilian Securities Commission CVM Instruction 400 of 2003, as amended. EARNINGS PRESENTATION 2Q26
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3 EARNINGS PRESENTATION 2Q26 Quarter Highlights Financial • Revenue of R $ 3 . 1 billion (+ 12 % vs . 2 Q 25 ), reflecting 8 % growth in procyclical revenues and 17 % growth in recurring revenues • Recurring EBITDA of R $ 1 . 9 billion , with a recurring EBITDA margin of 70 % • R $ 1 . 3 billion in shareholder distributions , comprising R $ 1 . 1 billion in interest on capital (IoC) and R $ 0 . 2 billion in share buybacks • Recurring net income of R $ 1 . 4 billion (+ 8 % vs . 2 Q 25 ), and recurring earnings per share of R $ 0 . 28 , up 12 % Operational • ADTV of R $ 31 . 3 billion in Equities (+ 20 % vs . 2 Q 25 ) , with highlights to the 42 % growth in BDRs and 74 % in Listed Funds • R $ 11 . 6 billion in public offerings , comprising a R $ 3 . 0 billion IPO, the first in 5 years • Resilient derivatives revenue, driven by the recovery in June trading volumes and the efficiency of the pricing model Products • Beginning of supervised production of electronic trade receivables in July and start of the market maker program for debentures • Launch of Financial Event Contracts linked to GDP and IPCA, expansion of assets eligible for RLP, and launch of new indices within the B 3 Treasury IPCA family
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4 EARNINGS PRESENTATION 2Q26 2Q26 2Q26/2Q25 2Q26/1Q26 Markets – Derivatives General ADV ( thousands of contracts ) 11,098 - 8.3% - 15.8% Average RPC (R$) 1.180 4.1% 7.0% OTC Derivatives Outstanding volume (R$ bn ) 8,856 10.9% 3.3% Markets – Equities Equities ADTV (R$ million ) 31,310 20.1% - 10.1% Margin (bps) 3.074 - 0.085 bps 0.131 bps Markets – Fixed Income Fixed Income New issuances (R$ bn ) 6,546 3.3% 2.6% Outstanding balance (R$ bn ) 9,687 16.5% 3.8% Data Analytics Solutions SNG # of vehicles financed ( thousand ) 1,884 9.0% - 0.5% Technology and Platforms OTC Utilization Average number of customers 24,328 8.7% 2.8% Highlights Operational Performance
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5 EARNINGS PRESENTATION 2Q26 (R$ million ) 2Q26 2Q26/2Q25 2Q26/1Q26 Total Revenue 3,081.4 12.2% - 3.8% Markets 2,034.5 9.0% - 5.5% Capital Markets Solutions 201.0 25.8% - 0.4% Data Analytics Solutions 315.2 22.0% - 0.7% Technology and Platforms 526.8 15.7% 0.3% Net Revenue 2,765.7 8.8% - 3.7% Total Expenses (975.6) 15.5% 6.2% Personnel and charges (459.8) 22.0% 11.2% Information Technology (186.1) 6.8% 9.2% Depreciation and amortization (95.3) - 1.6% - 0.4% Other (234.5) 19.4% 25.2% Recurring EBITDA 1 1,938.6 13.0% - 5.6% Recurring EBITDA margin 1 70.2% 47 bps - 139 bps Financial result 139.3 2.6% 24.4% Recurring Net Income 1 1,376.6 8.0% - 8.2% Recurring Earnings per share R$ 0.28 12.3% - 8.1% ¹ See reconciliations on slide 19 of the appendix Highlights Financial Performance
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6 EARNINGS PRESENTATION 2Q26 Markets - Derivatives 29% of the total revenue in the period ADV – 11 . 1 million contracts, down 8 . 3 % , primarily reflecting lower trading volumes in Cryptoassets , partially offset by increases of 6 . 7 % and 20 . 4 % in the ADV of Interest Rates in BRL and Equity Indices, respectively RPC – up 4 . 1 % , primarily driven by higher RPC in Interest Rates in BRL, reflecting the lower share of IDI Options in the trading mix OTC Derivatives – growth of 7 . 4 % in issuance volumes and 10 . 9 % in outstanding balance, respectively HIGHLIGHTS 2 Q26 / 2 Q 25 : Revenues (R$ million ) 2Q26 Δ 2Q25 Δ 1Q26 882 - 1% - 9% Segment impacted from the 4Q21 by the cash flow hedge accounting constituted in the bond issuance. More information on our earnings release . 237 240 264 315 266 47 48 47 52 46 298 288 273 268 254 37 23 24 11 8 17 17 18 19 18 82 84 85 92 90 176 188 199 209 199 893 888 911 966 882 2Q25 3Q25 4Q25 1Q26 2Q26 Interest rates in BRL derivatives Interest rates in US$ derivatives FX derivatives Cryptoassets Spot FX and commodities OTC Derivatives Stock indices futures
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7 EARNINGS PRESENTATION 2Q26 100 91 108 130 122 402 370 396 495 465 63 64 83 124 105 565 524 587 749 692 2Q25 3Q25 4Q25 1Q26 2Q26 Equity derivatives (trd. and post-trd.) Cash equities post-trading Cash equities trading Cash equities ADTV – up 20 . 1 % , driven by growth of 21 . 2 % , 41 . 8 % and 73 . 6 % in trading volumes of Equities, BDRs and Listed Funds, respectively ADTV of ETFs, BDRs and Listed Funds totaled R $ 4 . 4 billion, up 13 . 7 % , representing 14 . 2 % of total ADTV The trading and post - trade margin in the cash equities market was 3 . 074 bps, down 0 . 085 bps, reflecting both the increase in ADTV and higher index option exercise volumes, for which part of the volume is not subject to fees HIGHLIGHTS 2Q26 / 2Q25 : 2Q26 Δ 2Q25 Δ 1 Q26 692 +22% - 8% Revenues of 3Q25 and 4Q25 not adjusted for educational incentives of - R $5,0M and - R $20.0M, respectively. 1 Includes: Options on Equities and Index, Single Stock Futures Contract and Forward . 1 Markets – Equities 22% of the total revenue in the period Revenues (R$ million )
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8 EARNINGS PRESENTATION 2Q26 Issuances of bank funding instruments – growth of 5 . 2 % , mainly driven by a 30 . 4 % increase in RDB issuance Outstanding balance of fixed income instruments – growth of 16 . 5 % , continuing to reflect a high interest rate environment It is worth highlighting the 14 . 4 % increase in the outstanding balance of debentures, demonstrating robust activity in the corporate debt market for yet another quarter HIGHLIGHTS 2Q26 / 2Q25 : 2Q26 Δ 2Q25 Δ 1Q26 385 +17% +6% Markets – Fixed Income and Credit 13% of the total revenue in the period Revenues (R$ million ) 152 159 169 167 176 119 126 144 122 130 58 63 67 73 80 329 349 380 362 385 2Q25 3Q25 4Q25 1Q26 2Q26 Bank funding Corporate Debt Other
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9 EARNINGS PRESENTATION 2Q26 Revenue decreased 5 . 6 % , mainly driven by the decline in the average lender rate HIGHLIGHTS 2Q26 / 2Q25 : 2Q26 Δ 2Q25 Δ 1Q26 75 - 6% - 2% Markets – Securities Lending 2% of the total revenue in the period Revenues (R$ million ) 80 77 76 76 75 2Q25 3Q25 4Q25 1Q26 2Q26
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10 EARNINGS PRESENTATION 2Q26 HIGHLIGHTS 2Q 26 / 2Q25 : 2Q26 Δ 2Q25 Δ 1Q26 201 +26% - 0.4% Data for Capital Markets – increase of 28 . 4 % , explained by the implementation of the new market data pricing policy¹ and by a better performance of analytical products for capital markets Depository for Cash Equities – increase of 21 . 6 % , explained by a higher average balance during the period, by the new equities pricing structure and by the inflation adjustment of the Central Depository fees ² Listing and Solutions for Issuers – increase of 25 . 8 % , mainly driven by the higher volume of public offerings (IPOs and follow - ons) during the period and the inflation adjustment of Listing fees³ 1 For more information, access the Circular Letter as of 09/16/2025 ; ² For more information, access the Circular Letter as of 12/23/2025 ; and ³ For more information, access the Circular Letter as of 12/18/2025 Capital Markets Solutions 7% of the total revenue in the period Revenues (R$ million ) 34 34 43 35 43 77 75 93 97 99 49 53 58 70 59 160 162 194 202 201 2Q25 3Q25 4Q25 1Q26 2Q26 Depository for Cash Equities Data for Capital Markets Listing and Solutions for Issuers
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11 EARNINGS PRESENTATION 2Q26 HIGHLIGHTS 2 Q26 / 2Q25 : 2Q26 Δ 2Q25 Δ 1Q26 315 +22% - 1% Vehicles and Real Estate – increase of 32 . 3 % , explained by ( i ) the implementation of a new SNG billing model, which consolidated collections through B 3 and added R $ 27 . 5 million in 2 Q 26 , with the full pass - through of this amount recorded under revenue - linked expenses, and (ii) a 9 . 0 % increase in the number of financed vehicles Platforms and Analytics – 11 . 1 % growth, driven by the continued positive performance of Credit and Loss Prevention verticals 1 I ncludes : SNG and other services for the vehicle financing chain; collateral management; registration of real estate contracts and others. 1 Data Analytics Solutions 10% of the total revenue in the period Revenues (R$ million ) 125 136 161 140 139 133 156 154 178 176 258 291 315 317 315 2Q25 3Q25 4Q25 1Q26 2Q26 Platforms and Analytics Vehicles and Real Estate
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12 EARNINGS PRESENTATION 2Q26 HIGHLIGHTS 2Q26 / 2Q25 : 2Q26 Δ 2Q25 Δ 1Q26 527 +16% +0.3% Technology – increase of 10 . 3 % , mainly reflecting the growth in the number of clients in the OTC segment and the annual inflation adjustments applied to prices in the OTC Utilization line Market Support Services – increase of 31 . 4 % , mainly explained by a 21 . 7 % increase in the average outstanding balance of fund quotas and by adjustments in the pricing of fund quota registration and custody of these instruments Technology and Platforms 17% of the total revenue in the period Revenues (R$ million ) 314 322 328 342 347 124 143 160 159 163 17 15 17 24 18 455 480 505 525 527 2Q25 3Q25 4Q25 1Q26 2Q26 Technology Market Support Services Other
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13 EARNINGS PRESENTATION 2Q26 575.6 24 . 8 11 .9 6.3 ( 7 . 4) 61 1.2 (in R$ million and % of adjusted expenses ) Adjusted Personnel Information Technology Third - party services Other 2Q26 367.2 (60%) 186.1 (30%) 24.5 (4%) 33.5 (5%) 1Q26 357.6 (62%) 170.4 (29%) 17.1 (3%) 36.0 (6%) 2Q25 342.4 (59%) 174.2 (30%) 18.2 (3%) 40.9 (7%) ¹ Adjusted to exclude ( i ) depreciation and amortization; (ii) long - term stock - based compensation (principal + payroll taxes); (iii) provisions; (iv) rev enue - linked expenses; (v) other extraordinary expenses . ² Excludes the long - term stock - based compensation (principal + payroll taxes). ³ Formerly referred to as Data Processing 4 I ncludes expenses with maintenance, taxes, board and committee members compensation and others. Ad justed Personnel 2 (+7%) : higher provision for profit - sharing reflecting the performance achieved and annual salary adjustment Information Technology 3 (+7%): increased use of cloud technologies , investments in the modernization of the B3's Clearing infrastructure, and expenses related to licensing and support of technology products Thrid - party services (+34%): higher expenses with consulting services related to operational strengthening and risk management, as well as legal fees Other 4 ( - 18%) 2Q25 2 Q26 6% Adjusted Expenses¹ (R$ million )
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14 EARNINGS PRESENTATION 2Q26 (in R$ million and % of total expenses ) Personnel and charges Information Technology Revenue - linked expenses Other 2Q26 459.8 (47%) 186.1 (19%) 143.1 (15%) 186.7 (19%) 1Q26 413.4 (45%) 170.4 (19%) 135.6 (15%) 199.2 (22%) 2Q25 376.8 (45%) 174.2 (21%) 103.2 (12%) 190.1 (23%) ¹ Formerly referred to as Data Processing ² In cludes other expenses of the Company described in the Income Statement: Depreciation & amortization, Third - party services, Maintenance in general, Promotion and publicity, Taxes and charges, Board and committee members compensation and other expenses Pessonnel and charges (+22%): extraordinary expenses related to the changes in the Executive Board and others, higher provision for profit - sharing reflecting the performance achieved and the annual salary adjustment Revenue - linked expenses ( +39 %): new SNG billing model and incentives related to Treasury Direct, and the trading of ETFs , BDRs and Listed Funds Other² ( - 2%): Lower provisions for legal disputes, which are updated based on the B3SA3 share price 2Q25 2 Q26 16% Total Expenses (R$ million ) 844.3 82 .9 11 .9 39.9 (3. 4) 975 .6 Information Technology 1 (+7%): increased use of cloud technologies , investments in the modernization of B3's Clearing infrastructure, and expenses related to licensing and support of technology products
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15 EARNINGS PRESENTATION 2Q26 Cash and Financial Investments (R$ million ) ¹ I ncludes earnings and rights on securities in custody and deposits in an escrow account. Third - party cash is not considered as B 3’s own cash, but the Company earns interest on most of this c ash balance. ² Primarily composed of B3 Bank clients ’ deposits. ³ Does not include investments in NUAM Exchange and Fundo L4 Market participants ’ cash colateral and others 1 B3’s cash position 3 B3 Bank 2 Gross indebtedness at the end of June was 2.0x recurring EBITDA LTM 4 Bond has hedge accounting – see note 9 of Financial Statement Debt | Amount Amortization B3 Inova | US$ 250 mn Aug/26, Sep/26, Dec/26, Aug/27 and Nov/27 Debenture 2 nd issuance | R$1,20 bn Nov /29 Debenture/CRI 4 th issuance | R$205 mn Dec /28, Dec /29 and Dec /30 Debenture 8 th issuance | R$4,50 bn Oct /27, Oct /28 and Oct /29 Debenture 9 th issuance | R$1,70 bn Jan/30 and Jan/31 Debenture 10 th issuance | R$2,60 bn Sep /29 and Sep /30 Sustainability - linked bond | US$593,81 mn Sep /31 4 Financial Highlights 1Q26 2 Q25 2Q26 Debt Amortization S chedule (R$ billion ) Thrid - party Total Restricted and unrestricted 18,668 17,038 18,622 13,940 12,705 14,319 3,685 3,351 3,007 648 1,377 1,296 4,334 4,728 4,303 1.8 8.8 10.6 3.1 3.1 - - 0.8 0.5 1.3 2.6 12.4 15.0 Short-term Long-term Total Debt B3 Inova Loan Bond Debentures
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16 EARNINGS PRESENTATION 2Q26 / 6M26 6M25 Adj. net cash from operating activities ¹ 3,844 3,237 Net cash from investment activities ² 671 (12) Net cash from financing activities before distributions ³ (603) 1,030 Cash after investments and financing 3,912 4,256 CAPEX & Acquisition (112) (85) Distributions (1,479) (706) Buyback (197) (661) Cash generated ( used ) in the period 2,124 2,804 ¹ Cash flow from operating activities. adjusted by the variation of financial investments and third - parties collateral. ² Cash flow from investment activities other than capex and acquisitions . ³ Cash fl ow from interest and amortization paid and debt issued in t he period . Cash Generation (R$ million ) Cash Allocation – 6 M26 (R$ million ) Financial Highlights Cash generation Capex & Acquisitions Cash before distributions to shareholders Distributions Cash generated ( used ) in the períod Buyback 3,912 (112) 3,800 (1,479) (197) 2,124
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17 EARNINGS PRESENTATION 2Q26 APPENDIX EARNINGS PRESENTATION 2Q26
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18 EARNINGS PRESENTATION 2Q26 Revenue from other segments includes Derivatives, Fixed Income and Credit, securities lending, Capital Markets Solutions, Data Analytics Solutions and Technology and Platforms . ¹ From 2020 to LTM 2026. Recurring and p rocyclical r evenues (R$ million ) Revenue Diversification 0.7 0.7 0.9 0.9 0.8 0.9 0.8 0.9 0.9 1.0 1.0 1.0 1.0 1.0 1.1 1.1 1.1 1.2 1.2 1.2 1.3 1.3 1.4 1.5 1.5 1.5 1.4 1.5 1.6 1.7 1.8 1.7 1.7 1.6 1.6 1.5 1.5 1.6 1.5 1.5 1.4 1.4 1.4 1.5 1.5 1.4 1.4 1.5 1.4 1.5 1.7 1.6 1Q20 2Q20 3Q20 4Q20 1Q21 2Q21 3Q21 4Q21 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 4Q23 1Q24 2Q24 3Q24 4Q24 1Q25 2Q25 3Q25 4Q25 1Q26 2Q26 Recurring Procyclical
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19 EARNINGS PRESENTATION 2Q26 (R$ million ) 2Q26 2Q25 2Q26/2Q25 1Q26 2Q26/1Q26 Expenses (975.6) (844.3) 15.5% (918.7) 6.2% (+) Depreciation and amortization 95.3 96.8 - 1.6% 95.7 - 0.4% (+) Long - term stock - based incentive program 52.1 34.5 51.0% 55.8 - 6.6% (+) Extraordinary expenses related to changes in the Executive Board 40.5 - - - - (+) Provisions ( recurring and non - recurring ) 18.4 32.6 - 43.7% 43.7 - 57.9% (+) Revenue - linked expenses 143.1 103.2 38.6% 135.6 5.5% (+) Other non - recurring expenses 15.1 1.5 - 6.8 122.6% Adjusted expenses (611.2) (575.6) 6.2% (581.2) 5.2% Adjusted Expenses Financial Statements
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20 EARNINGS PRESENTATION 2Q26 (In R$ million ) 2Q26 2Q25 2Q26/ 2Q25 1Q26 2Q26/ 1Q26 EBITDA 1,885.4 1,794.8 5.0% 2,050.4 - 8.0% (+) Other non recurring expenses 53.2 (79.3) - 167.1% 2.8 - Recurring EBITDA 1,938.6 1,715.5 13.0% 2,053.2 - 5.6% Recurring EBITDA margin 70.2% 69.7% 47 bps 71.6% - 139 bps Recurring EBITDA Financial Statements Net Income Reconciliation (In R$ million ) 2Q26 2Q25 2Q26/ 2Q25 1Q26 2Q26/ 1Q26 Net Income (attributable to shareholders) 1,698.8 1,325.6 28.2% 1,477.0 15.0% (+) Reversal of provisions and other non - recurring income (21.4) (109.4) - 80.4% (4.0) 441.6% (+) Sale of investment in an associate (123.9) - - - - (+) Extraordinary expenses related to changes in the Executive Board 40.5 - - - - (+) Other non - recurring expenses 15.1 1.5 - 6.8 122.6% (+) Tax impacts from non - recurring items 25.5 36.7 - 30.5% (0.9) - (+) Fiscal benefit from the extraordinary interest on capital (277.5) - - - - (+) Amortization of intangíble assets 19.5 20.4 - 4.6% 20.7 - 5.9% Recurring net income 1,376.6 1,274.9 8.0% 1,499.6 - 8.2% (+) Deferred tax (goodwill from Neoway and Neurotech) 49.1 40.7 20.6% 40.7 23.5% Recurring net income adjusted by goodwill tax benefit 1,425.6 1,315.5 8.4% 1,540.2 - 7.4%
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21 EARNINGS PRESENTATION 2Q26 Return to Shareholders (R$ million ) 379 403 1,916 373 1,106 202 875 1,733 197 580 1,278 3,649 373 1,303 2Q25 3Q25 4Q25 1Q26 2Q26 Dividends IoC Buybacks In 2Q26, the Company returned R$1.3 billion to shareholders, including R$356 million in ordinary interest on capital (IoC), R$750 million in extraordinary IoC, and R$196.9 million in share buybacks R$0.11 R$0.25 R$0.72 R$0.07 R$0.26 Return per outstanding share
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22 EARNINGS PRESENTATION 2Q26 6,126 6,099 5,647 5,427 5,267 5,047 5,047 53 314 34 161 232 36 48 (30) 20 70 120 170 220 270 320 370 420 470 - 1,000 2,000 3,000 4,000 5,000 6,000 7,000 2021 2022 2023 2024 2025 1Q26 2Q26 Total shares issued - end of period Treasury shares - end of period N et income attributable to shareholders divided by the total number of shares issued at the end of the period . Values prior to the split, carried out in 2021, were adjusted to be comparable. Shares issued, held in treasury , and canceled ( in million of shares, except the EPS) Cancellation mar/21: (51) Cancellation mar/22: (27) Cancellation dec /23: (173) Cancellation apr /23: (280) Cancellation may /24: (100) Cancellation sep /24: (120) Cancellation mar /25: (160) Cancellation feb /26: ( 22 0) EPS Share buyback program Since 2021, the Company has repurchased about 19% of its capital R$0.77 R$0.69 R$0.73 R$0.84 R$0.89 R$0.29 R$0.34
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23 EARNINGS PRESENTATION 2Q26 Capital Structure 1.77% 1.24% 0.93% 0.70% 0.57% 0.57% 2022 2023 2024 2025 1Q26 2Q26 Avg. Spread DI Rate - Debentures 12.1 14.0 13.4 14.9 14.9 14.9 1.8x 2.2x 2.0x 2.1x 2.0x 2.0x 0.0x 0.5x 1.0x 1.5x 2.0x - 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 2022 2023 2024 2025 1Q26 2Q26 Gross Debt & Financial Leverage Gross Debit (R$ bn) Fiancial Leverage 69% 21% 9% Gross Debt Exposure CDI Bond 2031 - 4.125% p.a. B3 Inova
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24 EARNINGS PRESENTATION 2Q26