Dublin, Ireland-based Aon plc (AON) operates as a professional services firm in the United States and internationally. Valued at a market cap of $75.5 billion, the company operates through Risk Capital and Human Capital segments and offers commercial risk solutions comprising retail and insurance brokerage, specialty solutions, global risk consulting, captives management, and more.
AON stock has lagged behind the broader market over the past year, declining 2.9% compared to the S&P 500 Index’s ($SPX) 20.4% surge. Moreover, in 2026, the stock has grown by nearly 1%, underperforming the SPX’s 13.7% rise.