Aon PLCAon unveils a $17B debt-funded acquisition of USI, pausing buybacks and raising its debt load, which drove the stock down ~7%.

Aon (NYSE:AON) slid approximately 7.0% to $330.52 on Monday after unveiling its $17 billion acquisition of USI Insurance Services, a deal that expands its U.S. middle-market and excess-and-surplus insurance businesses but raises its debt load. USI brings roughly $3 billion in annual revenue, valuing the transaction at about 5.7 times sales. Aon plans to finance the purchase with debt, pause near-term share repurchases, and prioritize repayment after the expected fourth-quarter closing, with management forecasting an adjusted earnings boost beginning in 2028. The company reported $4.2 billion in second-quarter revenue, and the USI deal pushes its combined middle-market acquisition spending with NFP to approximately $30 billion. The stock's $330.52 price now sits 15.81% below its $392.61 GF Value, signaling that the market has already imposed a steep execution discount.
Aon PLCAon unveils a $17B debt-funded acquisition of USI, pausing buybacks and raising its debt load, which drove the stock down ~7%.
USI Insurance Services is the acquisition target being bought by Aon for ~$17B (5.7x sales), but as a private target its own impact is unclear.