American Superconductor Corporation (AMSC)

NASDAQ: AMSC · Real-Time Price · USD

32.13

+1.14 (3.68%)

At close: Aug 11, 2026, 4:00 PM EDT

31.60

-0.53 (-1.65%)

After-hours: Aug 11, 2026, 7:58 PM EDT

American Superconductor Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Aug 11, 2026	31.64	32.56	31.55	32.13	32.13	3.68%	526,196
Aug 10, 2026	32.81	32.99	30.96	30.99	30.99	-5.42%	568,480
Aug 7, 2026	34.00	34.24	31.27	32.77	32.77	-0.41%	864,453
Aug 6, 2026	29.64	33.93	28.50	32.90	32.90	-0.12%	1,134,798
Aug 5, 2026	33.25	33.63	32.62	32.94	32.94	-1.52%	995,925
Aug 4, 2026	32.10	33.82	31.54	33.45	33.45	7.94%	847,015
Aug 3, 2026	29.20	31.09	28.87	30.99	30.99	5.52%	664,246
Jul 31, 2026	30.74	31.13	29.15	29.37	29.37	-0.27%	659,108
Jul 30, 2026	28.59	29.73	28.07	29.45	29.45	10.55%	764,540
Jul 29, 2026	28.35	28.78	26.34	26.64	26.64	-7.34%	1,132,815
Jul 28, 2026	29.76	29.76	27.91	28.75	28.75	-5.83%	1,079,469
Jul 27, 2026	31.00	31.28	29.19	30.53	30.53	0.03%	1,378,378
Jul 24, 2026	32.96	32.96	30.20	30.52	30.52	-7.52%	1,118,207
Jul 23, 2026	32.82	33.92	32.23	33.00	33.00	-1.20%	862,136
Jul 22, 2026	34.55	34.99	33.20	33.40	33.40	-3.31%	764,144
Jul 21, 2026	33.56	34.79	33.33	34.55	34.55	6.26%	697,339
Jul 20, 2026	33.52	34.12	32.31	32.51	32.51	-1.56%	418,621
Jul 17, 2026	31.58	33.98	31.41	33.03	33.03	-0.20%	608,307
Jul 16, 2026	34.22	34.24	32.34	33.09	33.09	-6.26%	575,760
Jul 15, 2026	35.55	36.40	34.22	35.30	35.30	-0.45%	527,465
Jul 14, 2026	35.50	35.80	35.03	35.46	35.46	3.74%	418,289
Jul 13, 2026	35.10	35.55	33.97	34.18	34.18	-4.95%	555,320
Jul 10, 2026	37.17	37.72	35.76	35.96	35.96	-3.26%	561,166
Jul 9, 2026	37.66	37.81	36.49	37.17	37.17	3.25%	665,306
Jul 8, 2026	34.62	36.17	34.18	36.00	36.00	1.27%	829,273
Jul 7, 2026	37.02	37.20	34.50	35.55	35.55	-6.77%	734,063
Jul 6, 2026	37.61	39.11	37.34	38.13	38.13	2.75%	845,755
Jul 2, 2026	40.10	40.45	36.28	37.11	37.11	-7.04%	876,504
Jul 1, 2026	40.64	41.49	39.60	39.92	39.92	-3.83%	710,309
Jun 30, 2026	39.89	41.67	39.51	41.51	41.51	4.22%	710,074
Jun 29, 2026	40.24	41.40	37.81	39.83	39.83	0.25%	841,553
Jun 26, 2026	38.96	41.19	38.02	39.73	39.73	-1.37%	2,160,370
Jun 25, 2026	41.93	42.84	40.07	40.28	40.28	-1.40%	962,199
Jun 24, 2026	42.13	42.24	39.60	40.85	40.85	-1.87%	847,992
Jun 23, 2026	42.04	44.11	41.60	41.63	41.63	-8.15%	767,177
Jun 22, 2026	43.72	45.43	42.99	45.33	45.33	4.44%	1,035,096
Jun 18, 2026	41.49	43.49	40.44	43.40	43.40	8.15%	1,124,987
Jun 17, 2026	40.57	42.18	40.07	40.13	40.13	-0.82%	799,909
Jun 16, 2026	41.07	42.36	40.35	40.46	40.46	-1.49%	1,115,873
Jun 15, 2026	42.06	42.98	40.52	41.07	41.07	2.62%	924,785
Jun 12, 2026	39.51	40.62	38.71	40.02	40.02	1.29%	812,097
Jun 11, 2026	37.44	39.54	36.71	39.51	39.51	7.42%	1,842,920
Jun 10, 2026	40.29	40.96	36.72	36.78	36.78	-9.25%	2,420,049
Jun 9, 2026	43.66	44.76	38.92	40.53	40.53	-6.48%	1,558,694
Jun 8, 2026	42.86	44.39	40.76	43.34	43.34	2.36%	1,583,255
Jun 5, 2026	45.34	45.95	41.20	42.34	42.34	-8.75%	1,820,755
Jun 4, 2026	45.64	47.24	45.19	46.40	46.40	-0.58%	1,263,829
Jun 3, 2026	51.00	51.30	46.24	46.67	46.67	-8.79%	1,478,527
Jun 2, 2026	51.46	52.55	48.87	51.17	51.17	0.04%	1,281,733
Jun 1, 2026	49.47	51.99	48.77	51.15	51.15	0.41%	1,133,995