MarketAxess (MKTX) is trading lower as the market continues to react to the company’s March and first-quarter 2026 trading-volume disclosure, including discussion of preliminary fee-per-million (FPM) metrics and a change in how the firm reports estimated market share. Investors are using the update to reassess whether stronger headline volumes are enough to offset concerns about competitive intensity and monetization rates in credit and rates products. (investor.marketaxess.com)

MarketAxess reported March and Q1 2026 activity statistics that highlight healthy platform usage, but the stock’s reaction suggests the market is prioritizing two issues: (1) whether estimated market share is holding up in core U.S. credit categories and (2) whether fee capture (FPM) is trending favorably. The company also noted that its total credit and total rates FPM figures are preliminary and could be revised, keeping attention on the quality of the volume mix and ultimate revenue conversion. (investor.marketaxess.com)

With the next quarterly earnings report expected in early May 2026, today’s pullback reflects positioning ahead of the next detailed read-through on revenue yield, expenses, and the durability of full-year 2026 guidance. MarketAxess last reported fourth-quarter and full-year 2025 results in February, which included 2026 guidance and capital return actions that are now being re-evaluated against the latest trading-activity backdrop. (alphaquery.com)