American Superconductor Corporation (AMSC) short interest & short volume · 8.9% of float short
American Superconductor Corporation official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
AMSC short interest rose 4.9% to 4.1M shares in the Oct 15, 2026 report (8.9% of float, 4.9 days to cover). Daily short volume averaged 51.5% of volume over the last 20 sessions, down from 56.9% the 20 sessions before, the 49th percentile of its own 20-day averages since Sep 22, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 4.1M
- prior 3.9M
- % of float
- 8.9%
- float 46.0M
- Days to cover
- 4.9
- avg vol 832K
- Change vs prior report
- +4.9%
Days to cover is short interest divided by FINRA's average daily volume for the period: how many average days of trading it would take shorts to buy back.
% of float uses the current float for every report (no float was stored with older reports).
Source: FINRA equity short interest (twice monthly) · Settlement Oct 15, 2026
Daily short volume
Share of each day's volume sold short · FINRA Reg SHO
- Latest (Nov 2)
- 57.7%
- 155K of 268K
- 20-day average
- 51.5%
- prior 56.9%
- Percentile vs own history
- 49th
- 233 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Nov 2, 2026
Short squeeze score (model)
Price since settlement: +2.9%
Model, not a forecast: 40 pts short interest % of float (full at 30%), 25 pts days to cover (full at 10), 15 pts rise in short interest since the prior report (full at +50%), 20 pts price gain since the settlement date (full at +25%). Missing inputs score 0.
AMSC's squeeze score and its inputs with Lician Pro.Start 3-day trial — $149/yr
Market-wide: most shorted stocks, biggest changes and unusual short volume · AMSC overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 154,696 | 268,206 | 57.7% |
| 2026-10-30 | 179,820 | 316,254 | 56.9% |
| 2026-10-29 | 102,888 | 220,547 | 46.6% |
| 2026-10-28 | 148,502 | 420,806 | 35.3% |
| 2026-10-27 | 184,883 | 314,450 | 58.8% |
| 2026-10-26 | 122,132 | 207,535 | 58.9% |
| 2026-10-23 | 86,966 | 171,689 | 50.6% |
| 2026-10-22 | 112,235 | 276,143 | 40.6% |
| 2026-10-21 | 139,184 | 237,137 | 58.7% |
| 2026-10-20 | 132,729 | 283,686 | 46.8% |
Industrials peers with similar quant ratings
AMSC is rated 2.02 of 5 among 418 rated Industrials stocks (Lician quant rating, Nov 4, 2026). How the rating works
- PRG short interest2.06 · Sell · stock
- LMB short interest2.05 · Sell · stock
- HTLD short interest2.04 · Sell · stock
- TEX short interest2.03 · Sell · stock
- KTOS short interest2.01 · Sell · stock
- JBI short interest2.00 · Sell · stock
- AGCO short interest1.99 · Sell · stock
- SYM short interest1.98 · Sell · stock
AMSC short interest FAQ
What is AMSC's short interest?
American Superconductor Corporation (AMSC) had 4.1M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 8.9% of its 46.0M-share float.
How many days to cover does AMSC have?
4.9 days: 4.1M shares short divided by an average daily volume of 832K for the Oct 15, 2026 period.
Is AMSC short interest rising or falling?
AMSC short interest rose (+4.9%) from 3.9M to 4.1M shares in the Oct 15, 2026 report.
Is AMSC a short squeeze candidate?
Lician's squeeze watch scores AMSC 28 out of 100 (low) from the Oct 15, 2026 report: short interest % of float 11.9/40, days to cover 12.3/25, change in short interest vs prior report 1.5/15, price change since settlement date 2.3/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of AMSC daily volume is sold short?
51.5% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 49th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was AMSC's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for American Superconductor Corporation (AMSC) was 154,696 shares, 57.7% of 268,206 total volume.
How many AMSC short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for American Superconductor Corporation (AMSC), from Oct 20, 2026 through Nov 2, 2026.
How did AMSC short volume percent change from the prior cached session?
Cached FINRA short volume for American Superconductor Corporation (AMSC) moved from 56.9% on Oct 30, 2026 to 57.7% on Nov 2, 2026, up 0.8 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.