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Quantum (QMCO) Stock Chart & Stock Price History

Quantum logo
$11.45 +0.89 (+8.43%)
Closing price 08/4/2026 04:00 PM Eastern
Extended Trading
$11.40 -0.05 (-0.44%)
As of 08:38 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Quantum Stock Price Performance

The Quantum (QMCO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 37.79%, with a year-to-date return of 77.52%. In the past month, the stock has increased 12.70%, reflecting recent market activity.

As of the latest close, Quantum traded at $11.45 with a market cap of $451.13 million and volume of 1.19 million shares. Five years ago, the stock traded at a split-adjusted price of $131.00, representing a 91.26% decrease over that period. At the time, it had a market cap of $373.92 million and a volume of 12,166 shares.

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5 Day
Performance
+7.61%
1 Month
Performance
+12.70%
3 Month
Performance
+38.45%
Year-To-Date
Performance
+77.52%
1 Year
Performance
+37.79%
5 Year
Performance
-91.26%

QMCO Stock Chart for Wednesday, August, 5, 2026

QMCO Chart by TradingView

Quantum Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/04/2026$10.56$11.45
+8.43%		$11.63$10.761.19 million shs$451.13 million
08/03/2026$10.64$10.56
-0.75%		$11.02$10.19727,580 shs$416.08 million
07/31/2026$11.24$10.64
-5.34%		$12.23$10.571.38 million shs$418.95 million
07/30/2026$10.45$11.24
+7.56%		$11.43$10.341.47 million shs$442.63 million
07/29/2026$11.28$10.45
-7.36%		$12.81$10.401.58 million shs$411.52 million
07/28/2026$10.97$11.28
+2.83%		$11.43$9.861.14 million shs$444.15 million
07/27/2026$11.10$10.97
-1.17%		$11.52$10.591.06 million shs$432.00 million
07/24/2026$11.55$11.10
-3.90%		$11.54$10.94347,082 shs$437.12 million
07/23/2026$11.66$11.55
-0.94%		$12.35$11.34610,997 shs$454.84 million
07/22/2026$11.46$11.66
+1.75%		$12.24$11.27651,998 shs$459.11 million
07/21/2026$10.99$11.46
+4.28%		$11.67$11.32687,597 shs$451.30 million
07/20/2026$10.63$10.99
+3.39%		$11.48$10.54687,978 shs$432.79 million
07/17/2026$9.60$10.63
+10.73%		$10.80$9.061.02 million shs$418.61 million
07/16/2026$10.30$9.60
-6.80%		$10.39$9.48941,424 shs$378 million
07/15/2026$10.06$10.30
+2.39%		$11.60$10.111.48 million shs$405.61 million
07/14/2026$9.67$10.06
+4.03%		$10.31$9.66555,205 shs$396.16 million
07/13/2026$10.02$9.67
-3.49%		$10.16$9.56434,981 shs$380.76 million
07/10/2026$10.40$10.02
-3.65%		$10.45$9.63720,648 shs$394.59 million
07/09/2026$10.60$10.40
-1.89%		$10.97$10.31768,668 shs$409.50 million
07/08/2026$10.13$10.60
+4.64%		$10.69$9.831.42 million shs$417.43 million
07/07/2026$10.53$10.13
-3.80%		$10.59$9.79605,203 shs$398.92 million
07/06/2026$10.16$10.53
+3.64%		$10.61$9.91624,528 shs$154.14 million
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This page (NASDAQ:QMCO) was last updated on 8/5/2026 by MarketBeat.com Staff.
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