Aon plc stock heads into the open after a 1.5 percent drop
Published on 09/23/2026 at 06:13 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Aon plc stock closed at USD 291.19 on the NYSE on September 22, 2026, down 1.5 percent from the prior close of USD 295.64. The stock underperformed the S&P 500, which closed at 7,764.64, down 0.06 percent that session.
September 22, 2026 in numbers
Aon plc (ISIN IE00BLP1HW54, NYSE: AON) traded as low as USD 290.70 and finished at USD 291.19, according to MarketBeat. Volume reached 1,936,284 shares, while the session low marked a new 52-week low. The USD 4.45 decline from the previous close was larger than the S&P 500 move of less than 0.1 percent.
September 23, 2026 outlook
US trading resumes today with the broader market coming off a mixed session. The Nasdaq Composite closed at a record 27,244.28 on September 22, 2026, up 0.45 percent, while the S&P 500 was nearly unchanged. Market coverage from Reuters identified artificial intelligence shares and Middle East developments as key market themes.
