Aon Plc Hits Day High with Strong 3.81% Intraday Surge

Aon Plc has experienced a notable increase of 3.81% on October 31, 2025, reaching an intraday high of USD 348.39. This performance stands out against the S&P 500, which saw a modest gain of 0.26% on the same day. Over the past week, Aon has shown a slight uptick of 0.87%, outperforming the S&P 500's 0.71% increase.
Despite this day's positive movement, Aon has faced challenges over the longer term, with a decline of 5.4% over the past month and a year-to-date drop of 5.15%. In the last year, the stock has generated a return of 1.85%, significantly lagging behind the S&P 500's impressive 19.89% return.

Aon maintains a strong market position with a large market capitalization of USD 79,784 million and high institutional ownership at 94.76%. The company has demonstrated solid long-term fundamental strength, reflected in an average return on equity of 44.68%. However, its valuation appears elevated compared to peers, with a price-to-book ratio of 10.17.