Astera Labs, Inc. Common Stock (ALAB) short interest & short volume · 6.1% of float short
Astera Labs, Inc. Common Stock official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
ALAB short interest fell 12.7% to 8.0M shares in the Oct 15, 2026 report (6.1% of float, 1.8 days to cover). Daily short volume averaged 53.0% of volume over the last 20 sessions, the 39th percentile of its own 20-day averages since Sep 22, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 8.0M
- prior 9.2M
- % of float
- 6.1%
- float 131.9M
- Days to cover
- 1.8
- avg vol 4.4M
- Change vs prior report
- -12.7%
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)
- 46.4%
- 927K of 2.0M
- 20-day average
- 53.0%
- prior 52.8%
- Percentile vs own history
- 39th
- 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: -22.6%
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.
ALAB'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 · ALAB overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 926,501 | 1,996,774 | 46.4% |
| 2026-10-30 | 1,178,428 | 2,132,068 | 55.3% |
| 2026-10-29 | 710,389 | 1,130,940 | 62.8% |
| 2026-10-28 | 659,036 | 1,303,310 | 50.6% |
| 2026-10-27 | 885,076 | 1,607,297 | 55.1% |
| 2026-10-26 | 632,034 | 1,161,015 | 54.4% |
| 2026-10-23 | 509,391 | 941,310 | 54.1% |
| 2026-10-22 | 1,025,483 | 2,066,186 | 49.6% |
| 2026-10-21 | 485,248 | 833,219 | 58.2% |
| 2026-10-20 | 445,825 | 810,749 | 55.0% |
Technology peers with similar quant ratings
ALAB is rated 4.21 of 5 among 462 rated Technology stocks (Lician quant rating, Nov 4, 2026). How the rating works
- RBRK short interest4.25 · Buy · stock
- CLMB short interest4.24 · Buy · stock
- AMKR short interest4.23 · Buy · stock
- APPF short interest4.22 · Buy · stock
- AVPT short interest4.21 · Buy · stock
- AMD short interest4.20 · Buy · stock
- LRCX short interest4.19 · Buy · stock
- ZBRA short interest4.18 · Buy · stock
ALAB on Lician stock screens
ALAB is rated Buy (4.21 of 5) and passes 3 of 9 preset screens on the Nov 4, 2026 quant run. Build your own screen
ALAB short interest FAQ
What is ALAB's short interest?
Astera Labs, Inc. Common Stock (ALAB) had 8.0M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report, 6.1% of its 131.9M-share float.
How many days to cover does ALAB have?
1.8 days: 8.0M shares short divided by an average daily volume of 4.4M for the Oct 15, 2026 period.
Is ALAB short interest rising or falling?
ALAB short interest fell (-12.7%) from 9.2M to 8.0M shares in the Oct 15, 2026 report.
Is ALAB a short squeeze candidate?
Lician's squeeze watch scores ALAB 13 out of 100 (low) from the Oct 15, 2026 report: short interest % of float 8.1/40, days to cover 4.5/25, 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 ALAB daily volume is sold short?
53.0% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 39th percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was ALAB's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Astera Labs, Inc. Common Stock (ALAB) was 926,501 shares, 46.4% of 1,996,774 total volume.
How many ALAB short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Astera Labs, Inc. Common Stock (ALAB), from Oct 20, 2026 through Nov 2, 2026.
How did ALAB short volume percent change from the prior cached session?
Cached FINRA short volume for Astera Labs, Inc. Common Stock (ALAB) moved from 55.3% on Oct 30, 2026 to 46.4% on Nov 2, 2026, down 8.9 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.