---
title: "Aon PLC Stock Underperforms Monday When Compared To Competitors Despite Daily Gains"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286817256.md"
description: "Aon PLC (AON) shares rose 2.95% to $326.57 on Monday, marking the third consecutive day of gains. However, the stock underperformed compared to competitors like Marsh, MetLife, and Arthur J. Gallagher, which saw higher increases. Aon remains 14.29% below its 52-week high of $381.00 reached on July 25th. Trading volume matched its 50-day average at 1.4 million shares."
datetime: "2026-05-18T20:44:43.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286817256.md)
  - [en](https://longbridge.com/en/news/286817256.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286817256.md)
---

# Aon PLC Stock Underperforms Monday When Compared To Competitors Despite Daily Gains

This article was automatically generated by MarketWatch using technology from Automated Insights.

Shares of Aon PLC (AON) rallied 2.95% to $326.57 Monday, on what proved to be an all-around mixed trading session for the stock market, with the Dow Jones Industrial Average rising 0.32% to 49,686.12 and the S&P 500 Index falling 0.07% to 7,403.05.

This was the stock's third consecutive day of gains.

Aon PLC closed 14.29% short of its 52-week high of $381.00, which the company reached on July 25th.

The stock demonstrated a mixed performance when compared to some of its competitors Monday, as Marsh (MRSH) rose 3.06% to $165.98, MetLife Inc. (MET) rose 2.04% to $81.41, and Arthur J. Gallagher & Co. (AJG) rose 3.60% to $207.15.

Trading volume (1.4 M) eclipsed its 50-day average volume of 1.4 M.

Data source: Dow Jones Market Data, FactSet. Data compiled May 18, 2026.

This content was created by MarketWatch, which is operated by Dow Jones & Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal.

(END) Dow Jones Newswires

05-18-26 1644ET

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