American Superconductor Corp (AMSC) stock
Close on Nov 12, 2026Market cap $1.21BP/E 8.4Yield –
American Superconductor Corp grew revenue 31.1% to $349.05M over the twelve months to Sep 30, 2026. Operating income rose 55.7% to $18.03M, moving the operating margin from 4.3% to 5.2%. Free cash flow was $18.26M, down 29.4% from a year earlier. At the latest close the market valued the company at $1.21B, 8.4 times its earnings.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026
Valuation
- Market cap
- $1.21B
- P/E ratio
- 8.4
- Price to sales
- 3.48
- Price to book
- 2.08
- Dividend yield
- –
- Free cash flow yield
- –
Fundamentals
- Revenue
- $349.05M
- Net income
- $134.82M
- EPS, diluted
- $2.98
- Free cash flow
- $18.26M
- Book value per share
- $12.38
- Diluted shares
- 47M
Trading
- Next earnings
- Feb 3, 2027 (estimated, during market hours)
- Previous close
- $25.77
- Open
- $24.79
- Day's range
- $24.71 – $26.03
- Volume
- 538,841
- Average volume (20 days)
- 899,449
- Index membership
- Russell 2000 (since Sep 2024), Russell 3000 (since Aug 2024)
- Beta (5 years)
- 2.16
- 52-week range
- $22.16 – $60.18
- RSI (14 days)
- 43.0
- Volatility (1 year)
- 69.8%
- Relative volume
- 0.70×
- WACC
- 15.7%
On 2 of our idea lists: Small-cap growth, Institutions accumulating
Index membership is inferred from the holdings of funds that track each index (IWM, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2009, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.
| Period | AMSC | S&P 500 | Difference | AMSC per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | -15.4% | -2.7% | −12.7 pts | ||
| 3 months | -22.4% | -1.7% | −20.7 pts | ||
| Year to date | -13.0% | +11.9% | −24.9 pts | ||
| 1 year | -28.8% | +12.0% | −40.8 pts | ||
| 3 years | +223.9% | +78.2% | +145.8 pts | +48.0% | +21.2% |
| 5 years | +56.1% | +73.2% | −17.1 pts | +9.3% | +11.6% |
| 10 years | +196.7% | +309.6% | −113.0 pts | +11.5% | +15.1% |
Fifteen years at a glance
Fiscal years 2011 to 2025 and trailing twelve months, USD
Revenue
Gross profit
Operating income
Net income
EPS, diluted
Free cash flow
Press releases
Releases American Superconductor filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- Results
- Results
- Results
- Results
- Results
About American Superconductor
Motors & Generators
American Superconductor Corporation designs, manufactures, and supplies power control solutions and electrical infrastructure systems. The company conducts business through two primary segments: Grid and Wind. Its offerings include voltage compensators, industrial capacitors, power transformers, rectifiers, advanced turbine power electronics, specialized controls, and military protection systems that reduce magnetic signatures on naval vessels. The company serves public electric utilities, renewable energy project operators, wind turbine manufacturers, industrial processors, semiconductor fabricators, commercial shipyards, and military organizations such as the United States Navy.
Company profile, executives and historyAmerican Superconductor stock: common questions
What is American Superconductor's stock price?
AMSC closed at $25.04 on Nov 12, 2026, down 2.83% on the day. Over the past 52 weeks it traded between $22.16 and $60.18.
What is American Superconductor's market cap?
American Superconductor was worth $1.21B at the close on Nov 12, 2026: the share price times the diluted shares outstanding.
What is AMSC's P/E ratio?
AMSC trades at 8.4 times earnings, based on diluted earnings per share of $2.98 over the twelve months to Sep 30, 2026.
How much revenue does American Superconductor make?
American Superconductor reported revenue of $349.05M for the twelve months to Sep 30, 2026, up 31.1% from a year earlier.
Does American Superconductor pay a dividend?
No. American Superconductor has not paid a cash dividend over the last twelve months.
When does American Superconductor report earnings next?
American Superconductor is expected to report Q3 FY2026 results on Feb 3, 2027, during market hours. The date is estimated from its past reporting pattern until the company confirms it.
How has AMSC stock performed over the past year?
Including dividends, AMSC returned -28.8% over the past year, against +12.0% for the S&P 500.
How many AMSC shares are sold short?
4M shares were sold short at the latest FINRA report, 9.11% of the float, or 6.1 days of average trading volume.
Who are American Superconductor's competitors?
Companies most similar to American Superconductor by business, industry and size include VICR, EAF, FCEL, PLUG, FELE.
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