American Superconductor Corporation trailing returns
American Superconductor Corporation's 10-year return is +14.0% a year (CAGR) (+271.9% cumulative). How American Superconductor Corporation (AMSC) has performed over the last day, week, month and year, over 5, 10, 20 and 30 years, and since inception, through October 20, 2026 — price return and dividends side by side, with the worst drop inside each window.
Trailing returns by period#
To 2026-10-20. Price return + dividends = total return. Per year (CAGR) for windows of a year or more, with the cumulative total return beneath. Worst drop: the deepest fall in the price from a high inside the window, and when it bottomed.
| Period | Price | DivsDividends | Total | Worst drop |
|---|---|---|---|---|
| 1 day | +0.1% | +0.0% | +0.1% | — |
| 5 days | -10.5% | +0.0% | -10.5% | -10.7%Oct 14 |
| 1 month | -14.9% | +0.0% | -14.9% | -19.5%Oct 14 |
| YTD | -10.7% | +0.0% | -10.7% | -56.3%Oct 14 |
| 1 year | -57.9% | +0.0% | -57.9% | -59.3%Oct 2026 |
| 5 years | +8.4% | +0.0% | +8.4%+49.4% | -82.9%Dec 2022 |
| 10 years | +14.0% | +0.0% | +14.0%+271.9% | -89.1%Dec 2022 |
| 20 years | -6.5% | +0.0% | -6.5%-74.1% | -99.3%Aug 2017 |
| 30 years | -5.3% | +0.0% | -5.3%-80.2% | -99.6%Aug 2017 |
| Since inception (1991) | -4.2% | +0.0% | -4.2%-77.7% | -99.6%Aug 2017 |
Growth of AMSC#
Actual level with dividends reinvested (solid); dashed lines are each window's constant-rate path from start to today.
- 5 years+8.4%/year · +49.4%
- 10 years+14.0%/year · +271.9%
- 20 years-6.5%/year · -74.1%
- 30 years-5.3%/year · -80.2%
- Since inception (1991)-4.2%/year · -77.7%
Methodology#
Trailing returns measure from the closest close about N years before the latest close (2026-10-20). Cumulative return is the total change over the window; annualized return is the compound annual growth rate (CAGR), shown for windows of a year or more. Price return is the change in AMSC's closing price; total return reinvests dividends (from its split- and dividend-adjusted closes); the dividends column is the difference between the two. The worst drop is the largest fall in the closing price from a high to a later low inside the window, the way a drawdown is usually quoted. See the year-by-year returns for the calendar breakdown. Past performance does not predict future returns; not investment advice.
FAQ#
- What is American Superconductor Corporation's 10-year return?
- Over the last 10 years, American Superconductor Corporation (AMSC) returned about +14.0% a year annualized (+271.9% cumulative total return).
- What is American Superconductor Corporation's 20-year annualized return?
- Over the last 20 years, American Superconductor Corporation (AMSC) compounded at about -6.5% a year (-74.1% cumulative).
- What is American Superconductor Corporation's 30-year annualized return?
- Over the last 30 years, American Superconductor Corporation (AMSC) compounded at about -5.3% a year (-80.2% cumulative).
- What is American Superconductor Corporation's return since inception?
- Since 1991, American Superconductor Corporation (AMSC) has compounded at about -4.2% a year — -77.7% in total.