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QMCO
Volume: 210.84K

Quantum Corporation (QMCO) Market Capitalization Overview

Market Cap: $736.58M as of Oct 26, 2026

$736.58M
$511.94M (41.00%)past month
As of Oct 26, 2026, Quantum Corporation (QMCO) has a market capitalization of $736.58M. Over the past 30 days, its market cap has increased by 31.92%, while in the last 12 months, it has increased by 732.26%.

Market capitalization represents the total value of Quantum Corporation as perceived by the stock market. It is calculated by multiplying the current stock price by the total number of outstanding shares.

Quantum Corporation (QMCO) Market Cap Formula = Stock Price * Shares Outstanding

The market cap of Quantum Corporation (QMCO) helps investors assess the company's size and compare it with competitors for better investment decisions.

Quantum Corporation (QMCO) Market Cap & Key Trends

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Quantum Corporation (QMCO) Market Cap History

DateMarket CapChange
Oct 1, 2026$1.26B+31.92%
Sep 1, 2026$952.54M+128.94%
Aug 3, 2026$416.08M-3.32%
Jul 1, 2026$430.37M+180.27%
Jun 1, 2026$153.56M+39.49%
May 1, 2026$110.08M+49.50%
Apr 1, 2026$73.63M-5.09%
Mar 2, 2026$77.59M-9.68%
Feb 2, 2026$85.90M-10.57%
Jan 2, 2026$96.05M-7.16%

Quantum Corporation (QMCO) End of Year Market Cap History

DateMarket CapChange
2026$736.58M+732.26%
2025$88.51M-66.15%
2024$261.43M+684.22%
2023$33.34M-66.81%
2022$100.46M-69.58%
2021$330.19M—

FAQs About Quantum Corporation (QMCO) Market Cap

As of Oct 26, 2026, the market capitalization of Quantum Corporation (QMCO) is $736.58M. Market cap represents the total value of a company’s outstanding shares and is a key indicator of its size in the stock market.

In the last 30 days, Quantum Corporation’s market capitalization has decreased by -41.00%, changing from $1.25B to $736.58M as of Oct 26, 2026.

In the last 3 months, Quantum Corporation’s market capitalization has increased by —, changing from – to – as of –.

In the year 2025, Quantum Corporation’s market capitalization decreased from $261.43M in January to $88.51M in December, reflecting a -66.15% change.

In the past five years, Quantum Corporation (QMCO) has had a compound annual growth rate (CAGR) of -23.15% in market capitalization. This means its market cap has shrunk at an average rate of -23.15% per year.

Quantum Corporation (QMCO)

Volume: 210.84K

Quantum Corporation (QMCO) Market Cap & Key Trends

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