Quantum Corporation (QMCO)
NASDAQ: QMCO · Real-Time Price · USD
14.47
+0.78 (5.70%)
At close: Nov 6, 2026, 4:00 PM EST
14.49
+0.02 (0.14%)
After-hours: Nov 6, 2026, 7:56 PM EST

Quantum Market Cap

Quantum has a market cap or net worth of $570.26 million as of November 6, 2026. It is the 13,373rd most valuable company in the world and the 2,608th biggest in the United States. Its market cap has increased by 422.22% in one year.

Market Cap
570.26M
Enterprise Value
524.67M
1-Year Change
422.22%
Global Rank
Country Rank
#2,608 United States
Category

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Since August 2, 1999, Quantum's market cap has decreased from $3.22B to $570.26M, a decrease of -82.30%. That is a compound annual growth rate of -6.15%.

History

DateMarket Cap% Change
Nov 6, 2026570.30M544.41%
Dec 31, 202588.50M-66.14%
Dec 31, 2024261.40M687.35%
Dec 29, 202333.20M-70.67%
Dec 30, 2022113.20M-65.40%
Dec 31, 2021327.20M31.25%
Dec 31, 2020249.30M-9.05%
Dec 31, 2019274.10M295.53%
Dec 31, 201869.30M-64.50%
Dec 29, 2017195.20M-13.51%
Dec 30, 2016225.70M-8.03%
Dec 31, 2015245.40M-45.43%
Dec 31, 2014449.70M51.06%
Dec 31, 2013297.70M-0.27%
Dec 31, 2012298.50M-46.78%
Dec 30, 2011560.90M-31.77%
Dec 31, 2010822.10M31.73%
Dec 31, 2009624.10M725.53%
Dec 31, 200875.60M-86.23%
Dec 31, 2007549.00M21.92%
Dec 29, 2006450.30M-20.58%
Dec 30, 2005567.00M18.64%
Dec 31, 2004477.90M-13.95%
Dec 31, 2003555.40M31.61%
Dec 31, 2002422.00M-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