Westinghouse Air Brake Technologies Corp (WAB) short interest & short volume · 3.8M shares short
Westinghouse Air Brake Technologies Corp official short interest (FINRA, twice monthly) and daily short volume (FINRA Reg SHO), with history, % of float and days to cover.
What changed
WAB short interest rose 6.6% to 3.8M shares in the Oct 15, 2026 report (4.4 days to cover). Daily short volume averaged 42.5% of volume over the last 20 sessions, down from 58.7% the 20 sessions before, the 2nd percentile of its own 20-day averages since Sep 23, 2025.
Short interest
Official, twice monthly · settled Oct 15, 2026
- Shares short
- 3.8M
- prior 3.5M
- % of float
- —
- no float on file
- Days to cover
- 4.4
- avg vol 864K
- Change vs prior report
- +6.6%
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.
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)
- 52.2%
- 156K of 300K
- 20-day average
- 42.5%
- prior 58.7%
- Percentile vs own history
- 2nd
- 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: +1.4%
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.
WAB'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 · WAB overview
| Date | Short | Total | Short % of volume |
|---|---|---|---|
| 2026-11-02 | 156,398 | 299,739 | 52.2% |
| 2026-10-30 | 123,728 | 234,542 | 52.8% |
| 2026-10-29 | 115,589 | 349,143 | 33.1% |
| 2026-10-28 | 85,694 | 333,508 | 25.7% |
| 2026-10-27 | 90,703 | 333,925 | 27.2% |
| 2026-10-26 | 155,303 | 347,086 | 44.7% |
| 2026-10-23 | 225,757 | 539,828 | 41.8% |
| 2026-10-22 | 348,846 | 842,395 | 41.4% |
| 2026-10-21 | 749,800 | 1,265,683 | 59.2% |
| 2026-10-20 | 187,081 | 459,373 | 40.7% |
Industrials peers with similar quant ratings
WAB is rated 3.77 of 5 among 418 rated Industrials stocks (Lician quant rating, Nov 4, 2026). How the rating works
- AGX short interest3.81 · Buy · stock
- NDSN short interest3.80 · Buy · stock
- ICFI short interest3.79 · Buy · stock
- HAYW short interest3.78 · Buy · stock
- WCN short interest3.76 · Buy · stock
- ULS short interest3.75 · Buy · stock
- AWI short interest3.74 · Buy · stock
- GWW short interest3.72 · Buy · stock
WAB short interest FAQ
What is WAB's short interest?
Westinghouse Air Brake Technologies Corp (WAB) had 3.8M shares sold short and not yet covered in FINRA's Oct 15, 2026 settlement report.
How many days to cover does WAB have?
4.4 days: 3.8M shares short divided by an average daily volume of 864K for the Oct 15, 2026 period.
Is WAB short interest rising or falling?
WAB short interest rose (+6.6%) from 3.5M to 3.8M shares in the Oct 15, 2026 report.
Is WAB a short squeeze candidate?
Lician's squeeze watch scores WAB 14 out of 100 (low) from the Oct 15, 2026 report: days to cover 10.9/25, change in short interest vs prior report 2/15, price change since settlement date 1.1/20. It is a transparent model of how crowded the short side is, not a forecast that a squeeze will happen.
What share of WAB daily volume is sold short?
42.5% on average over the last 20 sessions to Nov 2, 2026 (FINRA Reg SHO daily short volume; the 2nd percentile of its own 20-day averages). Short volume counts market makers' same-day short sales, so it is not short interest.
What was WAB's latest FINRA short volume?
On Nov 2, 2026, cached FINRA short volume for Westinghouse Air Brake Technologies Corp (WAB) was 156,398 shares, 52.2% of 299,739 total volume.
How many WAB short-volume sessions are listed on this page?
This page lists 10 cached FINRA short-volume sessions for Westinghouse Air Brake Technologies Corp (WAB), from Oct 20, 2026 through Nov 2, 2026.
How did WAB short volume percent change from the prior cached session?
Cached FINRA short volume for Westinghouse Air Brake Technologies Corp (WAB) moved from 52.8% on Oct 30, 2026 to 52.2% on Nov 2, 2026, down 0.6 percentage points.
Not investment advice. Figures as filed or reported, not a live feed.