MarketAxess Holdings Inc. (NASDAQ:MKTX), the operator of a leading electronic trading platform for fixed-income securities, today announced that it will be participating in the following upcoming investor conferences:

Chris Concannon, Chief Executive Officer, will participate in a fireside chat at the Piper Sandler Global Exchange & FinTech Conference at 11:00 a.m. ET on June 4, 2026.

Chris Concannon and Ilene Fiszel Bieler, Chief Financial Officer, will participate in a fireside chat at the Morgan Stanley US Financials Conference at 2:30 p.m. ET on June 9, 2026.

The live webcasts and replays for both fireside chats 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 and other markets. Approximately 2,100 firms leverage MarketAxess' patented technology to efficiently trade fixed-income securities. Our automated and algorithmic trading solutions, combined with our integrated and actionable data offerings, help our clients make faster, better-informed decisions on when and how to trade on our platform. MarketAxess' award-winning Open Trading^® marketplace is widely regarded as the preferred all-to-all trading solution in the global credit markets. Founded in 2000, MarketAxess connects a robust network of market participants through an advanced full trading lifecycle solution that includes automated trading solutions, intelligent data and index products and a range of post-trade services. Learn more at www.marketaxess.com and on X @MarketAxess.

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INVESTOR RELATIONS

Stephen Davidson

MarketAxess Holdings Inc.

+1 212 813 6313

sdavidson2@marketaxess.com

MEDIA RELATIONS

Marisha Mistry

MarketAxess Holdings Inc.

+1 917 267 1232

mmistry@marketaxess.com

MarketAxess to Participate in Upcoming Investor Conferences