Quantum Corporation (QMCO) NASDAQ

Currency In USD

QMCO Historical Return

If you invested $1000 in Quantum Corporation (QMCO) 10 years ago, it would be worth $118.49 as of October 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $160.88, while $1000 invested 1 year ago would be worth $1,881.52. This corresponds to total returns of -88.15%, -83.91%, 88.15%, respectively, with annualized returns of -19.21%, -30.6%, 88.15%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

QMCO Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 21, 2026	19.2	17.62	17.62	19.23	17.25	2.14M
October 20, 2026	17.6	18.99	18.99	20.02	17.41	1.63M
October 19, 2026	19.11	18.31	18.31	19.53	18.22	1.68M
October 16, 2026	21.03	18.48	18.48	21.06	18.42	1.98M
October 15, 2026	22.5	21.61	21.61	22.52	20.38	2.69M
October 14, 2026	25.52	23.86	23.86	26.24	23.77	1.14M
October 13, 2026	26.02	26.52	26.52	28.07	25.78	2.07M
October 12, 2026	29.41	27.51	27.51	29.98	26.58	2.37M
October 09, 2026	29.89	30.43	30.43	30.8	28.3	1.2M
October 08, 2026	30.15	29.18	29.18	32.55	28.55	1.92M
October 07, 2026	32.5	31.07	31.07	33.39	30.4	1.44M
October 06, 2026	34.02	33.47	33.47	35.41	33.29	1.42M
October 05, 2026	34.39	34.01	34.01	35.65	33.64	1.65M
October 02, 2026	30.1	34.5	34.5	35.17	29.85	3.57M
October 01, 2026	33.19	31.89	31.89	34.37	31.51	1.91M
September 30, 2026	32.83	31.72	31.72	33.18	31.4	1.29M
September 29, 2026	32.32	32.86	32.86	34.68	31.17	1.84M
September 28, 2026	31.65	31.4	31.4	32.9	31.07	1.6M
September 25, 2026	30.01	31.68	31.68	33.01	29.02	4.03M
September 24, 2026	25.39	29.49	29.49	32.08	25.1	5.21M
September 23, 2026	25.44	25.97	25.97	29.15	24.5	3.68M
September 22, 2026	26.05	25.65	25.65	26.49	24.65	1.1M
September 21, 2026	26.04	26.1	26.1	26.45	25.76	1.08M
September 18, 2026	24.83	25.09	25.09	25.31	24.3	1.83M
September 17, 2026	24.68	24.94	24.94	26.39	24.59	1.43M
September 16, 2026	23.56	23.83	23.83	24.37	22.9	758,496
September 15, 2026	22.9	23.26	23.26	24.07	22.61	846,127
September 11, 2026	23.03	23.58	23.58	23.72	22.3	785,581
September 10, 2026	23.54	23.03	23.03	24.54	22.9	981,816
September 09, 2026	24.4	24.24	24.24	25.49	24.08	860,204
September 08, 2026	24.73	24.46	24.46	25.75	24.33	1.44M
September 04, 2026	24.47	24.73	24.73	25.48	23.93	1.04M
September 03, 2026	22.81	24.3	24.3	24.37	21.72	793,123
September 02, 2026	24.05	22.78	22.78	24.42	22.27	914,280
September 01, 2026	23.85	24.17	24.17	24.68	23.06	860,339
August 31, 2026	21.97	24.33	24.33	24.41	21.41	1.2M
August 28, 2026	23.42	22.26	22.26	23.72	21.91	727,588
August 27, 2026	23.5	23.56	23.56	23.85	22.84	878,223
August 26, 2026	22.31	23.21	23.21	23.26	21.72	855,118
August 25, 2026	21.9	22.39	22.39	22.41	21.01	958,248
August 24, 2026	21.31	21.56	21.56	21.91	20.48	924,016
August 21, 2026	20.8	22.25	22.25	22.4	19.73	1.46M
August 20, 2026	21.52	20.49	20.49	21.79	19.73	1.46M
August 19, 2026	23.27	21.79	21.79	23.27	21.29	1.86M
August 18, 2026	23.84	23.52	23.52	26.28	23.46	1.58M
August 17, 2026	24.83	24.92	24.92	25.95	23.75	2.09M
August 14, 2026	24.68	26.11	26.11	27.8	24.1	4.27M
August 13, 2026	21.75	24.68	24.68	24.93	21.52	4.37M
August 12, 2026	20.1	21.94	21.94	22.22	20.01	5.03M
August 11, 2026	14.52	19.4	19.4	19.6	13.99	0
August 10, 2026	12.2	11.78	11.78	12.45	11.44	1.35M
August 07, 2026	11.88	12.04	12.04	12.18	11.65	0
August 06, 2026	11.39	11.68	11.68	12.19	11.06	547,683
August 05, 2026	11.33	11.58	11.58	11.98	11.13	485,529
August 04, 2026	10.88	11.45	11.45	11.63	10.76	1.19M
August 03, 2026	10.6	10.56	10.56	11.02	10.19	727,555
July 31, 2026	11.41	10.64	10.64	12.23	10.57	1.38M
July 30, 2026	11.41	11.24	11.24	11.43	10.34	1.47M
July 29, 2026	11.3	10.45	10.45	12.81	10.4	1.58M
July 28, 2026	10.91	11.28	11.28	11.43	9.86	1.14M