MKTX · Marketaxess Holdings Inc

MarketAxess Holdings Inc. (Nasdaq: MKTX), the operator of a leading electronic trading platform for fixed-income securities and DirectBooks, the capital markets platform focused on optimizing global financing markets, today announced an agreement to provide mutual clients with streamlined access to DirectBooks’ primary issuance information and workflow tools through a new MarketAxess integration. For the first time, mutual clients of DirectBooks and MarketAxess will be able to manage their primary processes through a separate interface on MarketAxess, increasing workflow efficiency and access for buy-side traders. The integration allows MarketAxess clients to review DirectBooks deal announcements, submit indications of interest, and receive allocation messages from syndicate desks, providing increased speed, accuracy, and transparency across the deal lifecycle. “DirectBooks is delighted to welcome MarketAxess as our newest connectivity partner,” said Rich Kerschner, Chief Executive

Record Revenue of $846 Million in 2025 Driven by 10% Growth in Revenue Outside U.S. Credit Products 24% Increase in Block Trading ADV to Record $5 Billion in 2025 48% Increase in Portfolio Trading ADV to Record $1.4 Billion in 2025 with Record U.S. Credit ADV & Market Share 33% Increase in Dealer-Initiated ADV in 2025 MarketAxess Holdings Inc. (Nasdaq: MKTX), the operator of a leading electronic trading platform for fixed-income securities, today announced financial results for the fourth quarter and full year ended December 31, 2025. 4Q25 select financial and operational highlights* Total revenues of $209.4 million increased 3.5% , and included an increase of approximately $1.6 million from the impact of foreign currency fluctuations. Strong progress with our new initiatives across our three strategic channels : Client-Initiated Channel - 29% increase in block trading average daily volume (“ADV”), including 21% growth in U.S. credit, 41% growth in emerging markets (record) and

MarketAxess Holdings Inc. (Nasdaq: MKTX), the operator of a leading electronic trading platform for fixed-income securities, today announced trading volume and preliminary variable transaction fees per million (“FPM”) for January 2026. 1 Chris Concannon, CEO of MarketAxess, commented: “In January, we delivered 28% growth year-over-year in total credit on record ADV of $18.6 billion , and 19% growth in total rates. In credit, our emerging markets ADV increased 50% to a record $5.5 billion , almost 30% above the previous monthly record set last year, driven by record hard currency ADV (+28%) and record local markets ADV (+94%) . These results were driven by strong market volumes, as well as continued momentum in our new initiatives, with 56% growth in block trading ADV, 126% growth in portfolio trading ADV and 13% growth in dealer-initiated ADV. While our estimated market share in U.S. high-grade was dampened by a 92% increase in new issue block trading activity, annualized market

MarketAxess Holdings Inc. (Nasdaq: MKTX), the operator of a leading electronic trading platform for fixed-income securities, today announced that Ilene Fiszel Bieler, Chief Financial Officer, will participate in the UBS Financial Services Conference on February 9, 2026. Ms. Fiszel Bieler will participate in a fireside chat at 1:50 p.m. ET. The live webcast and replay for the fireside chat will be available on the events and presentations section of the MarketAxess Investor Relations homepage, https://investor.marketaxess.com/events-and-presentations . About MarketAxess MarketAxess (Nasdaq: MKTX) operates a leading electronic trading platform that delivers greater trading efficiency, a diversified pool of liquidity and significant cost savings to institutional investors and broker-dealers across the global fixed-income markets. Approximately 2,100 firms leverage MarketAxess’ patented technology to efficiently trade fixed-income securities. Our automated and algorithmic trading

MarketAxess Holdings Inc. (Nasdaq: MKTX), the operator of a leading electronic trading platform for fixed-income securities, today announced the election of Douglas Cifu and Kenneth Schiciano to serve on the Company’s Board of Directors, effective March 1, 2026. Mr. Cifu is the co‑founder of Virtu Financial, a global financial technology firm and market maker. He served as President from the company’s founding in 2008 until 2013, and then as Chief Executive Officer from 2013 through July 2025. He continued to advise Virtu through December 31, 2025. Before founding Virtu, Mr. Cifu was a partner at the international law firm Paul, Weiss, Rifkind, Wharton & Garrison. Mr. Schiciano has served as a Senior Advisor at TA Associates, a leading global private equity firm, since July 2022, where he focuses on investments in infrastructure, software and financial technology companies. Mr. Schiciano joined TA Associates in 1989 and has more than 30 years of experience in the private equity

MarketAxess Holdings Inc. (Nasdaq: MKTX), the operator of a leading electronic trading platform for fixed-income securities, will issue a press release announcing its fourth quarter and full year 2025 financial results on Friday, February 6, 2026, before the market opens. Chris Concannon, Chief Executive Officer, and Ilene Fiszel Bieler, Chief Financial Officer, will host a conference call to provide a strategic update and discuss the Company’s financial results and outlook on Friday, February 6, 2026 at 10:00 a.m. ET. To access the conference call, please dial +1-800-715-9871 (U.S.) or +1-646-307-1963 (International) and use the ID 1832176. The Company will also host a live audio Webcast of the conference call on the Investor Relations section of the Company's website at http://investor.marketaxess.com . The Webcast will also be archived on http://investor.marketaxess.com for 90 days following the announcement. About MarketAxess MarketAxess (Nasdaq: MKTX) operates a leading

MarketAxess Holdings Inc. (Nasdaq: MKTX), the operator of a leading electronic trading platform for fixed-income securities, today announced trading volume and preliminary variable transaction fees per million (“FPM”) for December 2025 and the fourth quarter ended December 31, 2025. 1 Select Fourth Quarter 2025 Highlights* (See tables 1-1C and table 2) Our new initiatives continued to show strong year-over-year progress across the client-initiated, portfolio trading and dealer-initiated channels . Client-Initiated Channel 29% growth in block trading average daily volume (“ADV”), with strong growth across U.S. credit (+21%) , record emerging markets (+41%) and eurobonds (+43%) . Portfolio Trading Channel 41% increase in total portfolio trading ADV to a record $1.5 billion , with record U.S. high-yield portfolio trading ADV of $368 million and record emerging markets portfolio trading ADV of $118 million . Our estimated market share of U.S. credit portfolio trading was a record 20.6% ,