Question · Q3 2025
Patrick Moley asked about the size of the opportunity presented by the recently announced closing auctions, its potential impact on data and market share, and how large a piece of the overall credit market this volume could become over time.
Answer
CEO Chris Concannon highlighted the multi-year investment and partnerships (BlackRock, State Street, Alliance, DWS, S&P) behind the closing auction, emphasizing it's a true auction for price discovery, not just mid-market matching. He explained its design to support the growing indexation and ETF market in fixed income, noting the significant volume aggregation near month-end and daily close. He stressed the critical role of MarketAxess's all-to-all network and the relevance of its CP+ data, integrated with S&P's iBoxx indices, for powering the closing price.