Quantum Corporation (QMCO)
NASDAQ: QMCO · Real-Time Price · USD
18.48
-3.13 (-14.48%)
At close: Oct 16, 2026, 4:00 PM EDT
18.38
-0.10 (-0.54%)
After-hours: Oct 16, 2026, 7:56 PM EDT
Quantum Market Cap
Quantum has a market cap or net worth of $728.3 million as of October 16, 2026. It is the 12,106th most valuable company in the world and the 2,448th biggest in the United States. Its market cap has increased by 339.53% in one year.
Market Cap
728.30M
Enterprise Value
682.70M
1-Year Change
339.53%
Global Rank
Country Rank
#2,448 United States
Category
ChartMarket Cap Chart
Since August 2, 1999, Quantum's market cap has decreased from $3.22B to $728.30M, a decrease of -77.39%. That is a compound annual growth rate of -5.32%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 16, 2026 | 728.30M | 722.94% |
| 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% |
View and export this data all the way back to 1999. Sign Up Today.
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
Related Stocks
| Company | Market Cap |
|---|---|
| IQM Quantum Computers Oyj | 1.81B |
| Quantum Computing | 1.55B |
| Corsair Gaming | 1.43B |
| Cricut | 1.40B |
| Pasqal Holding | 1.25B |
| ADI Global Distribution | 1.19B |
| Braiin | 964.49M |
| Unusual Machines | 890.72M |