MRSH Market Cap History — Marsh and McLennan Companies Capitalization Over Time

As of 2/5/2026 Marsh and McLennan Companies has a market cap of 90.78 billion. Investors often follow the MRSH market cap history to compare the size of the company over time.

This page shows MRSH market capitalization trends over time, with 1 market cap datapoints presented, dating back to 2/5/2026.

Quick links: Market Cap History Table  |  Market Cap History Chart  |  About Marsh and McLennan Companies
MRSH Market Cap History



Below is a table of the MRSH market cap history going back to 2/5/2026:

Date MRSH Market Cap
2/5/202690.78B

Also see: MRSH Shares Outstanding History
and MRSH YTD Return
Mouse over chart for data details
2/5/2026
Marsh & McLennan Companies, Inc. is a professional services firm offering services in areas of risk, strategy and people. Co.'s Risk and Insurance Services segment includes risk management activities (risk advice, risk transfer and risk control and mitigation solutions) as well as insurance and reinsurance broking and services. This segment operates through Marsh and Guy Carpenter. Marsh provides data-driven risk advisory services and insurance solutions to commercial and consumer clients. Guy Carpenter develops advanced risk, reinsurance and capital strategies. We show 1 historical shares outstanding datapoints in our MRSH shares outstanding history coverage, used to compute MRSH market cap on those dates.

Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing MRSH market cap history over the course of time is important for investors interested in comparing MRSH'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 MRSH versus a peer is one thing; comparing MRSH 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 MRSH can fluctuate over the course of history. With this page we aim to empower investors researching MRSH by allowing them to research the MRSH market cap history.
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Marsh and McLennan Companies (MRSH) 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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