AMSC (American Superconductor Corporation) historical data
STOCKListed1-minute bars
| Symbol | AMSC |
|---|---|
| Name | American Superconductor Corporation |
| Exchange | NASDAQ |
| Sector | Industrials |
| Industry | Electrical Equipment & Parts |
| IPO date | 1991-12-12 |
| History | 2000-01-04 to 2026-10-09 (about 26 years) |
| Bar sizes | Daily, hourly, 5-minute and 1-minute |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Included in the survivorship-free universe |
| Free tier | Last 12 months of daily bars |
Price history at a glance
AMSC last closed at $30.52 on 2026-10-09, -49.0% over the past year and +101.6% over five years. Its deepest fall from a prior high in this history was -99.6%, reached on 2017-08-08.
| Last close | $30.52 (2026-10-09) |
|---|---|
| 1-year change | -49.0% |
| 5-year change | +101.6% |
| Annualized since 2000-01-04 | -7.9% |
| 52-week range | $25.95 – $66.68 |
| Deepest drawdown | -99.6% (2017-08-08) |
| Avg. daily dollar volume (3 months) | $22.2m |
| Daily bars in history | 6,732 |
Split- and dividend-adjusted closes. Computed by FinzData from its own daily bars.
Institutional ownership (13F, 2026Q2)
| Managers holding | 278 |
|---|---|
| Shares held | 35,429,415 ($1.5bn reported value) |
| Quarter flows | 68 new, 108 added, 77 trimmed, 34 exited; +2,247,191 shares vs the prior quarter |
From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("AMSC") on the look-back bundles. Top holders of AMSC · All 13F managers
Short interest (2026-09-30)
| Shares short | 3,895,546 (-0.9% vs prior report) |
|---|---|
| Days to cover | 5.37 |
AMSC short interest history · Industrials sector
Get it in Python
import finzdata as yf
df = yf.Ticker("AMSC").history(start="2000-01-04", interval="1d")
df.tail()