American Superconductor Corporation (AMSC)

NASDAQ: AMSC · Real-Time Price · USD

25.65

-3.06 (-10.66%)

At close: Oct 14, 2026, 4:00 PM EDT

24.94

-0.71 (-2.77%)

Pre-market: Oct 15, 2026, 8:10 AM EDT

American Superconductor Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 14, 2026	28.00	28.00	25.38	25.65	25.65	-10.66%	1,279,930
Oct 13, 2026	29.18	29.72	28.32	28.71	28.71	-2.99%	603,963
Oct 12, 2026	30.43	30.51	29.47	29.60	29.60	-3.03%	541,768
Oct 9, 2026	31.30	31.54	30.30	30.52	30.52	-1.39%	743,652
Oct 8, 2026	31.14	31.96	30.16	30.95	30.95	-2.49%	1,063,896
Oct 7, 2026	30.57	31.97	29.99	31.74	31.74	-0.35%	1,367,023
Oct 6, 2026	30.49	32.10	30.25	31.85	31.85	6.24%	841,395
Oct 5, 2026	30.06	30.30	29.24	29.98	29.98	-0.10%	486,449
Oct 2, 2026	30.37	30.68	29.69	30.01	30.01	1.73%	533,649
Oct 1, 2026	29.25	30.08	28.20	29.50	29.50	1.34%	664,706
Sep 30, 2026	29.52	29.83	28.95	29.11	29.11	-0.21%	641,740
Sep 29, 2026	30.00	30.26	29.02	29.17	29.17	-0.41%	608,005
Sep 28, 2026	29.63	29.98	28.83	29.29	29.29	-2.40%	524,719
Sep 25, 2026	30.89	31.06	29.96	30.01	30.01	-1.35%	589,536
Sep 24, 2026	30.22	30.74	29.69	30.42	30.42	-2.03%	674,730
Sep 23, 2026	32.01	32.13	30.78	31.05	31.05	-0.61%	876,897
Sep 22, 2026	30.29	31.55	30.04	31.24	31.24	3.31%	808,156
Sep 21, 2026	31.00	31.00	30.12	30.24	30.24	0.17%	529,113
Sep 18, 2026	29.23	30.34	28.85	30.19	30.19	3.57%	991,297
Sep 17, 2026	29.14	29.50	28.77	29.15	29.15	4.82%	649,869
Sep 16, 2026	28.26	28.27	27.26	27.81	27.81	0.40%	731,090
Sep 15, 2026	27.69	27.99	27.28	27.70	27.70	1.54%	722,208
Sep 14, 2026	27.62	28.18	27.20	27.28	27.28	-7.62%	889,047
Sep 11, 2026	29.32	29.66	28.97	29.53	29.53	3.04%	391,818
Sep 10, 2026	28.46	29.16	28.08	28.66	28.66	-2.22%	554,554
Sep 9, 2026	30.14	30.65	29.28	29.31	29.31	-3.71%	900,751
Sep 8, 2026	30.00	31.00	29.90	30.44	30.44	3.01%	849,402
Sep 4, 2026	29.15	29.70	28.94	29.55	29.55	1.86%	468,716
Sep 3, 2026	28.40	29.23	28.27	29.01	29.01	1.83%	446,115
Sep 2, 2026	28.57	28.99	28.03	28.49	28.49	-0.25%	596,989
Sep 1, 2026	28.10	28.69	27.51	28.56	28.56	-0.52%	809,993
Aug 31, 2026	28.38	28.81	28.10	28.71	28.71	0.77%	755,346
Aug 28, 2026	29.83	29.93	28.30	28.49	28.49	-4.52%	666,368
Aug 27, 2026	30.48	30.49	29.30	29.84	29.84	1.19%	542,126
Aug 26, 2026	29.76	30.19	28.91	29.49	29.49	-0.54%	588,076
Aug 25, 2026	29.83	29.95	29.36	29.65	29.65	2.52%	441,321
Aug 24, 2026	29.08	29.59	28.10	28.92	28.92	-3.63%	1,119,731
Aug 21, 2026	30.51	30.65	29.42	30.01	30.01	-0.13%	738,844
Aug 20, 2026	30.98	31.16	29.72	30.05	30.05	-3.56%	517,066
Aug 19, 2026	30.80	31.34	29.80	31.16	31.16	0.45%	535,698
Aug 18, 2026	30.80	31.41	30.35	31.02	31.02	-3.45%	619,396
Aug 17, 2026	32.01	32.25	31.82	32.13	32.13	0.66%	550,525
Aug 14, 2026	31.99	32.75	31.59	31.92	31.92	1.30%	535,003
Aug 13, 2026	32.01	32.78	31.35	31.51	31.51	-2.39%	521,147
Aug 12, 2026	33.30	33.89	32.23	32.28	32.28	0.47%	533,166
Aug 11, 2026	31.64	32.56	31.55	32.13	32.13	3.68%	526,606
Aug 10, 2026	32.81	32.99	30.96	30.99	30.99	-5.42%	571,780
Aug 7, 2026	34.00	34.24	31.27	32.77	32.77	-0.41%	870,106
Aug 6, 2026	29.64	33.93	28.50	32.90	32.90	-0.12%	1,139,075
Aug 5, 2026	33.25	33.63	32.62	32.94	32.94	-1.52%	1,056,253