American Superconductor Corp (AMSC) returns
American Superconductor returns over 10 years
$1,000 invested in American Superconductor ten years ago was worth $3,920 at the close on October 30, 2026, with dividends reinvested: an average return of 14.6% a year. The same $1,000 in the S&P 500 (SPY) became $4,166.
Total return by period
| Period | Total return | A year, on average | $1,000 became | S&P 500 (SPY) |
|---|---|---|---|---|
| 1 month | -7.1% | — | $929.23 | -0.9% |
| 3 months | -8.1% | — | $918.51 | +2.1% |
| Year to date | -6.0% | — | $939.89 | +11.7% |
| 1 year | -54.1% | — | $459.10 | +12.4% |
| 3 years | +334.9% | +63.2% | $4,349 | +88.5% |
| 5 years | +47.2% | +8.0% | $1,472 | +76.0% |
| 10 years | +292.0% | +14.6% | $3,920 | +316.6% |
American Superconductor return by calendar year
| Year | AMSC | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | -6.0% | +11.7% | -17.7% |
| 2025 | +16.8% | +17.7% | -0.9% |
| 2024 | +121.1% | +24.9% | +96.2% |
| 2023 | +202.7% | +26.2% | +176.5% |
| 2022 | -66.2% | -18.2% | -48.0% |
| 2021 | -53.5% | +28.7% | -82.3% |
| 2020 | +198.3% | +18.4% | +180.0% |
| 2019 | -29.6% | +31.2% | -60.8% |
| 2018 | +207.2% | -4.6% | +211.7% |
| 2017 | -50.7% | +21.7% | -72.4% |
| 2016 | +15.7% | +12.0% | +3.7% |
Past returns do not predict future returns. Returns are computed from our daily closes, adjusted for splits and with dividends reinvested on their ex-dates; taxes and trading costs are left out.
See also: AMSC financials · AMSC valuation
No forecast, no recommendation. This page describes American Superconductor Corp from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.