Quantum Market Cap

Quantum has a market cap or net worth of $428.39 million as of July 20, 2026. Its market cap has increased by 702.24% in one year.

Market Cap

428.39M

Enterprise Value

555.61M

1-Year Change

702.24%

Ranking

#3245

ChartMarket Cap Chart

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Since August 2, 1999, Quantum's market cap has decreased from $3.22B to $428.39M, a decrease of -86.70%. That is a compound annual growth rate of -7.20%.

Market Cap History

Date	Market Cap	% Change
Jul 20, 2026	428.39M	384.06%
Dec 31, 2025	88.50M	-66.14%
Dec 31, 2024	261.40M	687.35%
Dec 29, 2023	33.20M	-70.67%
Dec 30, 2022	113.20M	-65.40%
Dec 31, 2021	327.20M	31.25%
Dec 31, 2020	249.30M	-9.05%
Dec 31, 2019	274.10M	295.53%
Dec 31, 2018	69.30M	-64.50%
Dec 29, 2017	195.20M	-13.51%
Dec 30, 2016	225.70M	-8.03%
Dec 31, 2015	245.40M	-45.43%
Dec 31, 2014	449.70M	51.06%
Dec 31, 2013	297.70M	-0.27%
Dec 31, 2012	298.50M	-46.78%
Dec 30, 2011	560.90M	-31.77%
Dec 31, 2010	822.10M	31.73%
Dec 31, 2009	624.10M	725.53%
Dec 31, 2008	75.60M	-86.23%
Dec 31, 2007	549.00M	21.92%
Dec 29, 2006	450.30M	-20.58%
Dec 30, 2005	567.00M	18.64%
Dec 31, 2004	477.90M	-13.95%
Dec 31, 2003	555.40M	31.61%
Dec 31, 2002	422.00M	-72.44%

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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

Full Definition

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