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AMSC US​

American Superconductor Corp /DE/(AMSC US)

$25.12+0.110.44%Ext:$25.09-0.030.13%(Market Closed · 23:43:45 UTC)

Overview

ProfileEntity Structure

Documents

SEC Filings

Financials & Metrics

FinancialsChartingShort InterestEmployees

Short Interest

Short Interest3.9M
Price$27.70
Sep 15, 2026
Short Float %8.53%
Short Ratio5.98

Daily Short Sale Volume

Short Volume231.8K
Price$34.04
Feb 20, 2026
Short Volume Ratio48.10%

Short Interest History

Settlement DateShort InterestShares FloatAvg. Daily VolumeShort FloatShort Ratio
Sep 15, 2026
3.9M
46.0M
657.6K
8.53%
5.98
Aug 31, 2026
3.7M
46.0M
635.9K
7.94%
5.75
Aug 14, 2026
3.5M
46.0M
718.6K
7.55%
4.84
Jul 31, 2026
3.5M
46.0M
833.2K
7.67%
4.24
Jul 15, 2026
3.4M
46.0M
671.7K
7.40%
5.07
Jun 30, 2026
3.4M
46.0M
1.0M
7.31%
3.29
Jun 15, 2026
3.5M
46.0M
1.4M
7.52%
2.39
May 29, 2026
3.9M
46.0M
1.4M
8.48%
2.81
May 15, 2026
3.7M
45.9M
1.2M
8.15%
3.14
Apr 30, 2026
3.8M
45.9M
1.7M
8.23%
2.21
Apr 15, 2026
2.9M
45.9M
875.4K
6.42%
3.37
Mar 31, 2026
2.8M
45.5M
1.0M
6.17%
2.72
Mar 13, 2026
2.5M
45.5M
862.9K
5.44%
2.87
Feb 27, 2026
3.0M
45.5M
967.4K
6.62%
3.11
Feb 13, 2026
2.8M
45.5M
2.0M
6.22%
1.43
Jan 30, 2026
2.4M
45.5M
766.1K
5.36%
3.18
Jan 15, 2026
2.6M
45.5M
813.2K
5.71%
3.19
Dec 31, 2025
2.4M
45.5M
771.4K
5.29%
3.12
Dec 15, 2025
2.3M
45.5M
773.3K
4.98%
2.93
Nov 28, 2025
2.5M
45.5M
938.5K
5.60%
2.71
Nov 14, 2025
2.7M
45.5M
1.7M
5.85%
1.53
Oct 31, 2025
2.6M
45.5M
968.5K
5.78%
2.72
Oct 15, 2025
2.7M
45.5M
1.2M
5.87%
2.17
Sep 30, 2025
2.8M
45.5M
1.5M
6.14%
1.92
Sep 15, 2025
2.7M
45.5M
923.5K
5.87%
2.89
Aug 29, 2025
2.3M
45.5M
914.2K
4.97%
2.48
Aug 15, 2025
2.3M
45.5M
1.2M
4.99%
1.83
Jul 31, 2025
2.4M
45.5M
1.3M
5.20%
1.84
Jul 15, 2025
3.1M
45.5M
1.0M
6.80%
3.08
Jun 30, 2025
3.4M
45.5M
1.2M
7.45%
2.78
Jun 13, 2025
2.7M
45.5M
1.8M
5.94%
1.49
May 30, 2025
2.8M
45.5M
1.0M
6.16%
2.68
May 15, 2025
3.1M
45.5M
455.4K
6.77%
6.76
Apr 30, 2025
3.2M
45.5M
421.1K
6.96%
7.52
Apr 15, 2025
2.7M
45.5M
660.8K
5.95%
4.09
Mar 31, 2025
2.8M
45.5M
633.5K
6.14%
4.41
Mar 14, 2025
2.9M
45.5M
1.0M
6.39%
2.90
Feb 28, 2025
3.2M
45.5M
1.2M
6.96%
2.68
Feb 14, 2025
3.0M
45.5M
1.8M
6.60%
1.65
Jan 31, 2025
3.5M
45.5M
878.4K
7.69%
3.98
Jan 15, 2025
3.9M
45.5M
977.2K
8.60%
4.00
Dec 31, 2024
3.8M
45.5M
1.2M
8.37%
3.21
Dec 13, 2024
3.0M
45.5M
1.6M
6.53%
1.87
Nov 29, 2024
2.6M
45.5M
1.2M
5.80%
2.25
Nov 15, 2024
2.9M
45.5M
2.1M
6.31%
1.34
Oct 31, 2024
2.7M
45.5M
1.1M
6.03%
2.40
Oct 15, 2024
2.6M
45.5M
1.0M
5.74%
2.55
Sep 30, 2024
2.9M
45.5M
1.3M
6.39%
2.20
Sep 13, 2024
2.6M
45.5M
958.6K
5.81%
2.76
Aug 30, 2024
2.6M
45.5M
583.7K
5.64%
4.39
Aug 15, 2024
2.7M
45.5M
957.5K
5.92%
2.81
Jul 31, 2024
2.7M
45.5M
1.3M
5.93%
2.13
Jul 15, 2024
2.9M
45.5M
1.3M
6.46%
2.33
Jun 28, 2024
2.3M
45.5M
1.7M
4.95%
1.31
Jun 14, 2024
2.0M
45.5M
1.3M
4.47%
1.56
May 31, 2024
1.7M
45.5M
939.7K
3.66%
1.77
May 15, 2024
1.9M
45.5M
325.8K
4.07%
5.68
Apr 30, 2024
1.9M
45.5M
248.0K
4.13%
7.57
Apr 15, 2024
2.2M
45.5M
296.1K
4.76%
7.31
Mar 28, 2024
1.9M
45.5M
475.3K
4.21%
4.03
Mar 15, 2024
2.0M
45.5M
693.5K
4.42%
2.90
Feb 29, 2024
1.8M
45.5M
601.6K
3.91%
2.96
Feb 15, 2024
1.9M
45.5M
1.4M
4.19%
1.41
Jan 31, 2024
2.1M
45.5M
2.4M
4.58%
1.00
Jan 12, 2024
1.4M
45.5M
467.3K
3.16%
3.08
Dec 29, 2023
1.4M
45.5M
467.7K
3.17%
3.08
Dec 15, 2023
1.6M
45.5M
490.6K
3.63%
3.36
Nov 30, 2023
1.6M
45.5M
413.1K
3.43%
3.78
Nov 15, 2023
1.6M
45.5M
473.2K
3.50%
3.37
Oct 31, 2023
1.9M
45.5M
404.7K
4.28%
4.81
Oct 13, 2023
1.9M
45.5M
431.4K
4.22%
4.45
Sep 29, 2023
2.0M
45.5M
472.0K
4.35%
4.19
Sep 15, 2023
2.3M
45.5M
741.2K
5.00%
3.07
Aug 31, 2023
2.6M
45.5M
1.5M
5.73%
1.71
Aug 15, 2023
3.0M
45.5M
11.8M
6.68%
1.00
Jul 31, 2023
688.5K
45.5M
1.1M
1.51%
1.00
Jul 14, 2023
567.1K
45.5M
106.6K
1.25%
5.32
Jun 30, 2023
677.9K
45.5M
257.6K
1.49%
2.63
Jun 15, 2023
815.4K
45.5M
359.3K
1.79%
2.27
May 31, 2023
640.7K
45.5M
153.9K
1.41%
4.16
May 15, 2023
680.0K
45.5M
94.6K
1.49%
7.19
Apr 28, 2023
793.1K
45.5M
94.0K
1.74%
8.44
Apr 14, 2023
824.4K
45.5M
167.6K
1.81%
4.92
Mar 31, 2023
877.3K
45.5M
165.3K
1.93%
5.31
Mar 15, 2023
800.9K
45.5M
172.6K
1.76%
4.64
Feb 28, 2023
700.4K
45.5M
175.7K
1.54%
3.99
Feb 15, 2023
625.8K
45.5M
282.4K
1.38%
2.22
Jan 31, 2023
448.0K
45.5M
166.5K
0.98%
2.69
Jan 13, 2023
412.1K
45.5M
140.5K
0.91%
2.93
Dec 30, 2022
445.7K
45.5M
282.1K
0.98%
1.58
Dec 15, 2022
652.5K
45.5M
211.4K
1.43%
3.09
Nov 30, 2022
579.3K
45.5M
175.0K
1.27%
3.31
Nov 15, 2022
514.1K
45.5M
284.6K
1.13%
1.81
Oct 31, 2022
515.8K
45.5M
120.3K
1.13%
4.29
Oct 14, 2022
593.9K
45.5M
198.3K
1.31%
2.99
Sep 30, 2022
606.8K
45.5M
273.3K
1.33%
2.22
Sep 15, 2022
507.3K
45.5M
224.4K
1.12%
2.26
Aug 31, 2022
484.6K
45.5M
184.5K
1.07%
2.63
Aug 15, 2022
501.0K
45.5M
336.1K
1.10%
1.49
Jul 29, 2022
553.9K
45.5M
207.3K
1.22%
2.67
Jul 15, 2022
568.2K
45.5M
229.9K
1.25%
2.47
Jun 30, 2022
1.1M
45.5M
1.0M
2.48%
1.10
Jun 15, 2022
1.8M
45.5M
400.1K
3.92%
4.45
May 31, 2022
1.6M
45.5M
203.7K
3.47%
7.75
May 13, 2022
1.5M
45.5M
256.8K
3.31%
5.86
Apr 29, 2022
1.4M
45.5M
294.9K
3.14%
4.84
Apr 14, 2022
1.2M
45.5M
217.5K
2.55%
5.33
Mar 31, 2022
1.1M
45.5M
365.6K
2.42%
3.01
Mar 15, 2022
1.3M
45.5M
306.4K
2.95%
4.38
Feb 28, 2022
1.2M
45.5M
184.2K
2.63%
6.49
Feb 15, 2022
1.2M
45.5M
252.1K
2.64%
4.77
Jan 31, 2022
1.1M
45.5M
277.6K
2.50%
4.10
Jan 14, 2022
1.2M
45.5M
202.9K
2.53%
5.68
Dec 31, 2021
1.1M
45.5M
300.8K
2.39%
3.62
Dec 15, 2021
1.1M
45.5M
232.9K
2.32%
4.54
Nov 30, 2021
1.2M
45.5M
187.9K
2.69%
6.52
Nov 15, 2021
1.3M
45.5M
267.7K
2.78%
4.73
Oct 29, 2021
1.6M
45.5M
148.9K
3.48%
10.63
Oct 15, 2021
1.7M
45.5M
263.7K
3.72%
6.42
Sep 30, 2021
2.0M
45.5M
361.3K
4.30%
5.41
Sep 15, 2021
1.7M
45.5M
267.0K
3.80%
6.47
Aug 31, 2021
1.6M
45.5M
340.6K
3.55%
4.74
Aug 13, 2021
1.4M
45.5M
289.3K
3.17%
4.99
Jul 30, 2021
1.6M
45.5M
246.7K
3.54%
6.53
Jul 15, 2021
1.4M
45.5M
199.7K
3.08%
7.01
Jun 30, 2021
1.7M
45.5M
556.5K
3.73%
3.05
Jun 15, 2021
1.7M
45.5M
909.1K
3.71%
1.86
May 28, 2021
1.5M
45.5M
181.8K
3.25%
8.13
May 14, 2021
1.5M
45.5M
320.4K
3.21%
4.55
Apr 30, 2021
1.4M
45.5M
329.9K
2.97%
4.10
Apr 15, 2021
1.1M
45.5M
330.6K
2.50%
3.44
Mar 31, 2021
1.3M
45.5M
444.7K
2.88%
2.95
Mar 15, 2021
1.1M
45.5M
308.0K
2.46%
3.63
Feb 26, 2021
1.2M
45.5M
287.8K
2.65%
4.19
Feb 12, 2021
1.3M
45.5M
535.6K
2.86%
2.43
Jan 29, 2021
1.3M
45.5M
457.1K
2.80%
2.78
Jan 15, 2021
1.3M
45.5M
530.2K
2.84%
2.44
Dec 31, 2020
1.5M
45.5M
558.3K
3.36%
2.74
Dec 15, 2020
1.5M
45.5M
231.1K
3.24%
6.38
Nov 30, 2020
1.4M
45.5M
344.7K
3.16%
4.17
Nov 13, 2020
1.6M
45.5M
288.9K
3.59%
5.65
Oct 30, 2020
1.9M
45.5M
570.4K
4.19%
3.34
Oct 15, 2020
2.2M
45.5M
354.3K
4.84%
6.22
Sep 30, 2020
2.2M
45.5M
434.5K
4.87%
5.10
Sep 15, 2020
2.2M
45.5M
143.3K
4.74%
15.04
Aug 31, 2020
2.1M
45.5M
189.0K
4.57%
11.00
Aug 14, 2020
2.4M
45.5M
293.3K
5.33%
8.26
Jul 31, 2020
2.3M
45.5M
168.1K
5.10%
13.79
Jul 15, 2020
2.4M
45.5M
195.4K
5.20%
12.09
Jun 30, 2020
2.4M
45.5M
218.1K
5.19%
10.81
Jun 15, 2020
2.2M
45.5M
232.3K
4.93%
9.65
May 29, 2020
2.4M
45.5M
228.1K
5.37%
10.71
May 15, 2020
2.5M
45.5M
148.5K
5.57%
17.07
Apr 30, 2020
2.7M
45.5M
142.2K
5.90%
18.88
Apr 15, 2020
2.8M
45.5M
182.6K
6.21%
15.47
Mar 31, 2020
2.8M
45.5M
302.2K
6.20%
9.34
Mar 13, 2020
3.1M
45.5M
205.2K
6.86%
15.21
Feb 28, 2020
3.2M
45.5M
257.4K
6.93%
12.25
Feb 14, 2020
3.1M
45.5M
320.8K
6.78%
9.62
Jan 31, 2020
3.0M
45.5M
246.2K
6.54%
12.09
Jan 15, 2020
2.9M
45.5M
186.0K
6.36%
15.56
Dec 31, 2019
3.5M
45.5M
229.9K
7.72%
15.28
Dec 13, 2019
3.6M
45.5M
199.2K
8.01%
18.29
Nov 29, 2019
3.5M
45.5M
314.9K
7.72%
11.15
Nov 15, 2019
3.0M
45.5M
195.8K
6.55%
15.22
Oct 31, 2019
2.9M
45.5M
170.9K
6.40%
17.04
Oct 15, 2019
3.0M
45.5M
123.6K
6.50%
23.94
Sep 30, 2019
2.9M
45.5M
198.7K
6.48%
14.83
Sep 13, 2019
3.0M
45.5M
209.4K
6.54%
14.21
Aug 30, 2019
3.1M
45.5M
154.5K
6.71%
19.74
Aug 15, 2019
3.0M
45.5M
194.8K
6.59%
15.38
Jul 31, 2019
2.9M
45.5M
150.3K
6.44%
19.50
Jul 15, 2019
3.0M
45.5M
282.3K
6.66%
10.73
Jun 28, 2019
2.6M
45.5M
547.2K
5.81%
4.83
Jun 14, 2019
2.3M
45.5M
367.4K
4.97%
6.15
May 31, 2019
2.5M
45.5M
201.5K
5.41%
12.22
May 15, 2019
2.6M
45.5M
230.7K
5.63%
11.11
Apr 30, 2019
2.7M
45.5M
236.4K
5.87%
11.29
Apr 15, 2019
2.5M
45.5M
297.5K
5.52%
8.45
Mar 29, 2019
2.4M
45.5M
657.6K
5.19%
3.59
Mar 15, 2019
2.5M
45.5M
421.5K
5.51%
5.94
Feb 28, 2019
2.5M
45.5M
407.6K
5.39%
6.02
Feb 15, 2019
2.4M
45.5M
555.9K
5.30%
4.33
Jan 31, 2019
2.2M
45.5M
221.6K
4.88%
10.02
Jan 15, 2019
2.2M
45.5M
234.1K
4.75%
9.22
Dec 31, 2018
2.3M
45.5M
356.1K
5.15%
6.58
Dec 14, 2018
2.3M
45.5M
322.7K
5.07%
7.14
Nov 30, 2018
2.3M
45.5M
173.4K
5.13%
13.46
Nov 15, 2018
2.6M
45.5M
384.1K
5.66%
6.70
Oct 31, 2018
2.7M
45.5M
73.5K
5.88%
36.40
Oct 15, 2018
2.8M
45.5M
79.0K
6.17%
35.54
Sep 28, 2018
3.0M
45.5M
131.2K
6.59%
22.86
Sep 14, 2018
3.0M
45.5M
103.2K
6.55%
28.88
Aug 31, 2018
3.0M
45.5M
65.1K
6.67%
46.59
Aug 15, 2018
3.3M
45.5M
190.8K
7.28%
17.35
Jul 31, 2018
3.4M
45.5M
179.4K
7.41%
18.79
Jul 13, 2018
3.4M
45.5M
392.0K
7.43%
8.62
Jun 29, 2018
3.2M
45.5M
147.1K
6.99%
21.62
Jun 15, 2018
3.5M
45.5M
180.3K
7.74%
19.54
May 31, 2018
3.1M
45.5M
104.0K
6.73%
29.42
May 15, 2018
3.2M
45.5M
95.3K
7.05%
33.64
Apr 30, 2018
3.2M
45.5M
121.3K
7.14%
26.78
Apr 13, 2018
3.3M
45.5M
137.4K
7.16%
23.72
Mar 29, 2018
3.2M
45.5M
214.6K
6.94%
14.71
Mar 15, 2018
2.9M
45.5M
145.5K
6.36%
19.89
Feb 28, 2018
2.8M
45.5M
101.1K
6.16%
27.71
Feb 15, 2018
2.7M
45.5M
238.6K
5.96%
11.36
Jan 31, 2018
2.5M
45.5M
438.7K
5.56%
5.77
Jan 12, 2018
2.4M
45.5M
428.6K
5.25%
5.57
Dec 29, 2017
2.2M
45.5M
146.6K
4.86%
15.07