Aon Market Cap History
Below is a table of the Aon market cap history going back to 1/29/2010:

Date AON Market Cap
1/29/201010.38B
3/31/201011.51B
6/30/201010.01B
9/30/201010.59B
1/31/201115.24B
3/31/201117.51B
6/30/201116.76B
9/30/201113.57B
1/31/201215.75B
4/2/201216.07B
6/30/201215.08B
9/30/201216.66B
1/31/201317.99B
3/31/201319.01B
6/30/201319.79B
9/30/201322.41B
1/31/201424.23B
3/31/201424.99B
6/30/201426.17B
9/30/201425.00B
1/31/201525.24B
3/31/201527.08B
7/23/201528.44B
10/22/201525.31B
4/21/201627.34B
7/21/201629.02B
10/20/201628.95B
5/8/201732.18B
8/3/201735.35B
10/26/201737.79B
2/16/201834.68B
5/3/201834.23B
7/26/201835.96B
10/25/201836.12B
2/15/201941.27B
4/25/201943.20B
7/25/201946.43B
10/24/201944.80B
2/13/202054.32B
4/30/202039.90B
7/30/202048.05B
10/29/202042.71B
2/18/202151.36B
4/29/202153.99B
7/29/202159.55B
10/28/202170.74B

Also see: AON Shares Outstanding History
and AON YTD Return
Aon Historical Market Cap:
+17.74% CAGR
Aon Historical Market Cap: +17.74% CAGR

Mouse over chart for data details
1/29/2010 ...10/28/2021
Aon is a holding company. Through its subsidiaries, Co. provides advice and solutions to clients focused on risk, retirement, and health. Co. provides five principal products and services: Commercial Risk Solutions, which includes retail brokerage, cyber solutions, global risk consulting, and captives; Reinsurance Solutions, which includes treaty and facultative reinsurance and capital markets; Retirement Solutions, which includes core retirement, investment consulting, and human capital; Health Solutions, which includes health and benefits brokerage and health care exchanges; and Data and Analytic Services, which includes Affinity, Aon InPoint, CoverWallet, and ReView. We show 46 historical shares outstanding datapoints in our AON shares outstanding history coverage, used to compute AON market cap on those dates.

Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing Aon market cap history over the course of time is important for investors interested in comparing Aon's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of Aon versus a peer is one thing; comparing Aon market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like Aon can fluctuate over the course of history. With this page we aim to empower investors researching Aon by allowing them to research the Aon market cap history.
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Aon (AON) is categorized under the Financials sector; to help you further research historical market cap numbers, below are some other companies in the same sector:

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