Amprius Technologies Inc. (AMPX) short interest & short volume · 23.4% of float short
Amprius Technologies Inc. official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
AMPX short interest was little changed at 22.7M shares in the Oct 15, 2026 report (23.4% of float, 3.8 days to cover). Daily short volume averaged 50.9% of volume over the last 20 sessions, up from 44.6% the 20 sessions before, the 76th percentile of its own 20-day averages since Oct 2, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 22.7M
- prior 22.8M
- % of float
- 23.4%
- float 97.1M
- Days to cover
- 3.8
- avg vol 6.0M
- Change vs prior report
- -0.4%
| Report date | Shares short | $ value short | Change | % float | Days to cover | Price |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | 22.7M | $190.9M | -0.4% | 23.4% | 3.8 | $8.40 |
| Sep 30, 2026 | 22.8M | $220.9M | +0.6% | 23.5% | 3.8 | $9.68 |
| Sep 15, 2026 | 22.7M | $207.8M | -2.0% | 23.4% | 5.1 | $9.16 |
| Aug 31, 2026 | 23.2M | $228.8M | +4.6% | 23.8% | 5.3 | $9.88 |
| Aug 14, 2026 | 22.1M | $277.1M | -7.4% | 22.8% | 3.1 | $12.51 |
| Jul 31, 2026 | 23.9M | $229.7M | -14.7% | 24.6% | 4.2 | $9.60 |
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 11)
- 38.7%
- 1.5M of 3.9M
- 20-day average
- 50.9%
- prior 44.6%
- Percentile vs own history
- 76th
- 233 periods since 2025
Loading prices…
Source: FINRA Reg SHO daily short sale volume · Latest Nov 11, 2026
Short squeeze score (model)
Price since settlement: -0.6%
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.
AMPX'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 · AMPX overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-11 | 1,504,922 | 3,892,488 | 38.7% |
| 2026-11-10 | 1,689,980 | 2,521,086 | 67.0% |
| 2026-11-09 | 967,205 | 2,576,964 | 37.5% |
| 2026-11-06 | 800,771 | 2,027,612 | 39.5% |
| 2026-11-05 | 2,083,544 | 4,161,908 | 50.1% |
| 2026-11-04 | 1,008,329 | 1,897,292 | 53.1% |
| 2026-11-03 | 737,905 | 1,355,119 | 54.5% |
| 2026-11-02 | 950,499 | 1,755,750 | 54.1% |
| 2026-10-30 | 1,239,766 | 2,216,113 | 55.9% |
| 2026-10-29 | 639,924 | 1,442,332 | 44.4% |
Industrials peers with similar quant ratings
AMPX is rated 1.41 of 5 among 425 rated Industrials stocks (Lician quant rating, Nov 13, 2026). How the rating works
- BV short interest1.45 · Strong Sell · stock
- CVLG short interest1.44 · Strong Sell · stock
- ORN short interest1.43 · Strong Sell · stock
- SUPX short interest1.42 · Strong Sell
- AXON short interest1.40 · Strong Sell · stock
- MATW short interest1.39 · Strong Sell · stock
- BOC short interest1.38 · Strong Sell · stock
- SERV short interest1.37 · Strong Sell · stock
AMPX short interest FAQ
What is AMPX's short interest?
Amprius Technologies Inc. (AMPX) had 22.7M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 23.4% of its 97.1M-share float.
How many days to cover does AMPX have?
3.8 days: 22.7M shares short divided by an average daily volume of 6.0M for the Oct 15, 2026 period.
Is AMPX short interest rising or falling?
AMPX short interest was little changed (-0.4%) from 22.8M to 22.7M shares in the Oct 15, 2026 report.
Is AMPX a short squeeze candidate?
Lician's squeeze watch scores AMPX 41 out of 100 (elevated) from the Oct 15, 2026 report: short interest % of float 31.2/40, days to cover 9.5/25, change in short interest vs prior report 0/15, price change since settlement date 0/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of AMPX daily volume is sold short?
50.9% on average over the last 20 sessions to Nov 11, 2026 (FINRA Reg SHO daily short volume; the 76th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was AMPX's latest FINRA short volume?
On Nov 11, 2026, cached FINRA short volume for Amprius Technologies Inc. (AMPX) was 1,504,922 shares, 38.7% of 3,892,488 total volume.
How many AMPX short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Amprius Technologies Inc. (AMPX), from Oct 29, 2026 through Nov 11, 2026.
How did AMPX short volume percent change from the prior cached session?
Cached FINRA short volume for Amprius Technologies Inc. (AMPX) moved from 67.0% on Nov 10, 2026 to 38.7% on Nov 11, 2026, down 28.3 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.