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Blair Effron Warns M&A Market Faces a Necessary Slowdown

Published July 26, 2026 at 4:32 PM UTC

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Blair Effron, co-founder of Centerview Partners, one of Wall Street's most respected boutique investment banks, has warned that the global mergers and acquisitions market is heading for a significant slowdown. Speaking in an interview with Le Figaro, Effron pointed to rising interest rates, tighter financing conditions, and geopolitical uncertainty as key drags on dealmaking activity. His assessment carries weight because Centerview has advised on some of the largest M&A transactions in recent years, including the merger of AT&T and Time Warner. Effron's warning comes after a record-breaking deal spree in 2021 and early 2022, fueled by cheap money and post-pandemic optimism. Now, with central banks aggressively hiking rates to fight inflation, the cost of debt has surged, making leveraged buyouts less attractive. At the same time, regulatory scrutiny in Europe and the United States has intensified, particularly in technology and pharmaceuticals. Effron noted that as a result, both corporate buyers and private equity firms are becoming more cautious, with many waiting for valuations to drop further before committing capital. This cautious stance is already visible in the data: global M&A volumes in the first half of 2023 fell nearly 40% compared to the same period last year, according to Refinitiv. The slowdown affects not only investment banks but also law firms, consultants, and the companies themselves, which may face prolonged uncertainty about their strategic direction. Effron's outlook suggests that the market is moving from a period of excess to one of careful, value-focused dealmaking.