American Superconductor (AMSC) Tax Rate (2009 - 2025)
American Superconductor (AMSC) reported Tax Rate of 2068.84% for Q4 2025, down 206465.0% on a YoY basis from N/an in Q4 2024, and down 86160.15% quarter-over-quarter from 2.4% in Q3 2025.
American Superconductor (AMSC) Tax Rate (2009 - 2025) Analysis & Trends
American Superconductor has reported Tax Rate for 17 years, with the latest figure at 2068.84% in Q4 2025.
- For the quarter ending Q4 2025, Tax Rate fell 206465.0% year-over-year to 2068.84%; the trailing twelve-month figure through Dec 2025 stood at 624.68% (down 92903.0% YoY), and the FY2025 full-year result was 757.64%, down 75478.0% from the prior year.
- Tax Rate for Q4 2025 stood at 2068.84%, down from 2.4% in the prior quarter.
- The five-year high for Tax Rate was 4844.66% in Q3 2024, with the low at 2068.84% in Q4 2025.
- Historically, Tax Rate has averaged 150.92% across 5 years, with a median of 0.2% in 2021.
- Annual changes were most pronounced in 2024 — Tax Rate surged 484912 bps — and 2025, when it slumped 484226 bps.
- American Superconductor's Tax Rate stood at 0.02% in 2021, then sank by 5707 bps to 1.34% in 2022, then tumbled by 369 bps to 6.31% in 2023, then surged by 34 bps to 4.19% in 2024, then plunged by 49325 bps to 2068.84% in 2025.
- The last three Tax Rate figures came in at 2068.84% (Q4 2025), 2.4% (Q3 2025), and 2.87% (Q2 2025), per Business Quant data.
Powered by 
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | GE Vernova | 251.14 Bn | 242.11 Bn | 1.78 Bn | 6.94% |
| 2 | Eaton | 153.70 Bn | 153.00 Bn | 2.65 Bn | 21.68% |
| 3 | Parker-Hannifin | 111.44 Bn | 110.97 Bn | 2.02 Bn | 19.21% |
| 4 | Cummins | 90.06 Bn | 87.33 Bn | 2.24 Bn | 27.19% |
| 5 | Emerson Electric | 77.51 Bn | 75.74 Bn | 2.42 Bn | 22.07% |
| 6 | Illinois Tool Works | 72.86 Bn | 72.03 Bn | 1.76 Bn | 20.58% |
| 7 | Ametek | 51.86 Bn | 51.38 Bn | 717.56 Mn | 18.99% |
| 8 | Rockwell Automation | 50.08 Bn | 49.71 Bn | 1.13 Bn | 20.23% |
| 9 | Dover | 28.99 Bn | 27.35 Bn | 798.14 Mn | 20.12% |
| 10 | American Superconductor | 1.86 Bn | 1.86 Bn | 22.85 Mn | -2,068.84% |
Historic Data
Download Data| Date | Value |
|---|---|
| Dec 31, 2025 | -2,068.84% |
| Dec 31, 2025 | -2,068.84% |
| Sep 30, 2025 | 2.40% |
| Sep 30, 2025 | 2.40% |
| Jun 30, 2025 | 2.87% |
| Jun 30, 2025 | 2.87% |
| Mar 31, 2025 | 228.46% |
| Mar 31, 2025 | 228.46% |
| Dec 31, 2024 | -4.19% |
| Dec 31, 2024 | -4.19% |
| Sep 30, 2024 | 4,844.66% |
| Sep 30, 2024 | 4,844.66% |
| Jun 30, 2024 | -8.28% |
| Jun 30, 2024 | -8.28% |
| Mar 31, 2024 | -0.58% |
| Mar 31, 2024 | -0.58% |
| Dec 31, 2023 | -6.31% |
| Dec 31, 2023 | -6.31% |
| Sep 30, 2023 | -4.46% |
| Sep 30, 2023 | -4.46% |