Microsoft Market Cap

Microsoft has a market cap or net worth of $3.97 trillion as of October 9, 2026. It is the 4th most valuable company in the world and the 4th biggest in the United States. Its market cap has increased by 1.84% in one year.

Market Cap

3.97T

Enterprise Value

4.03T

1-Year Change

1.84%

Global Rank

Country Rank

#4 United States

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Since December 1, 1998, Microsoft's market cap has increased from $322.92B to $3.97T, an increase of 1,130.41%. That is a compound annual growth rate of 9.42%.

Market Cap History

Date	Market Cap	% Change
Oct 9, 2026	3.97T	10.54%
Dec 31, 2025	3.59T	14.70%
Dec 31, 2024	3.13T	12.13%
Dec 29, 2023	2.79T	56.33%
Dec 30, 2022	1.79T	-29.20%
Dec 31, 2021	2.53T	50.16%
Dec 31, 2020	1.68T	39.78%
Dec 31, 2019	1.20T	54.30%
Dec 31, 2018	779.67B	18.15%
Dec 29, 2017	659.91B	36.58%
Dec 30, 2016	483.16B	9.02%
Dec 31, 2015	443.17B	15.75%
Dec 31, 2014	382.88B	22.60%
Dec 31, 2013	312.30B	38.92%
Dec 31, 2012	224.80B	2.94%
Dec 30, 2011	218.38B	-8.55%
Dec 31, 2010	238.78B	-11.77%
Dec 31, 2009	270.64B	56.50%
Dec 31, 2008	172.93B	-48.08%
Dec 31, 2007	333.05B	13.46%
Dec 29, 2006	293.54B	5.45%
Dec 30, 2005	278.36B	-4.18%
Dec 31, 2004	290.49B	-1.84%
Dec 31, 2003	295.94B	7.06%
Dec 31, 2002	276.41B	-22.53%

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Market Capitalization

Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.

Formula: Market Cap = Stock Price * Shares Outstanding

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