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Equibles

WPRT · Westport Fuel Systems Inc. · Short Interest

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$1.84 +0.08 (+4.55%) At close · Sep 11
Rebalance outlook locked
Market Cap
$34.95M
Shares
19.00M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

Pull short interest history through the short interest API or MCP →

WPRT Latest Reported Short Interest

FINRA reported 562,433 WPRT shares sold short as of the August 31, 2026 settlement date, a decrease of 150,571 shares. Days to cover was 11.20 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent splits of this listing

WPRT Short Interest Forecast

Equibles' model estimates 532,163 shares sold short for the September 15, 2026 settlement, -5.4% versus the latest reported position, with a likely range of 473,196 to 593,807 shares. This model prediction uses FINRA data through September 11, 2026; FINRA's official release is expected September 24, 2026.

Model estimate

Expected Sep 15 short interest

as of Sep 11 High confidence 77% chance it falls
532,163 -5.4% vs reported
Likely range 473,196 to 593,807 The latest estimate appears in the chart below. Official release expected Sep 24. Methodology
Short Squeeze Score
60/100
Short interest 3.0% of shares — P58 Days to cover 11.2 — P90 Price vs VWAP -17.5% — P16 Short-volume trend +11.6% — P85 Short interest change -21.1% — P12 Worst FTD 0.14% of shares — P87

Positioning score 60.4 + catalyst boost 0 (total capped at 100). This is a screening index, not a probability of a squeeze.

Method and coverage limits

Factor percentiles compare eligible primary operating-company stocks reporting short interest at the latest settlement date (2026-08-31). The weighted mean uses short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, and fails-to-deliver 10%. Missing factors redistribute their weight; incomplete coverage is not evidence of low risk. Price, volume, and earnings boosts add 10 each, capped at 20.

Shares outstanding are not free float. Borrow fees, utilization, lendable supply, recalls, and dealer inventory are not measured. Short-sale volume does not measure the change in open shorts; fails to deliver are not a borrow-cost measurement; price vs VWAP does not establish short sellers' entry prices. Earnings can move prices in either direction.

The weights are judgment-based, not calibrated to future squeeze outcomes. The separate options assessment below does not change this universe ranking.

Options positioning & squeeze sensitivity

Nearest expiration after today within 30 calendar days; same-day expirations and later maturities are excluded.

Open interest is incomplete, stale, or dated inconsistently; positioning totals are unavailable.

Open interest has both a buyer and a seller; it does not reveal dealer hedge direction. Gross gamma sums both calls and puts without netting and uses a local 1% price-change approximation. It measures sensitivity, not predicted buying or a squeeze probability.

Assessment prepared 2026-09-13 14:57 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

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Dimensions
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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-09-30 Scheduled
    FINRA publishes Oct 9
    		 — — — —
    2026-09-15 Scheduled
    FINRA publishes Sep 24
    		 — — — —
    2026-08-31 562,433 713,004 -150,571 11.20
    2026-08-14 713,004 821,482 -108,478 8.01
    2026-07-31 821,482 798,948 +22,534 14.40
    2026-07-15 798,948 865,843 -66,895 8.37
    2026-06-30 865,843 720,717 +145,126 1.00
    2026-06-15 720,717 724,004 -3,287 32.64
    2026-05-29 724,004 732,406 -8,402 28.03
    2026-05-15 732,406 750,472 -18,066 24.73
    2026-04-30 750,472 852,310 -101,838 13.13
    2026-04-15 852,310 880,615 -28,305 24.34
    2026-03-31 880,615 946,919 -66,304 24.31
    2026-03-13 946,919 958,662 -11,743 30.49
    2026-02-27 958,662 975,385 -16,723 32.65
    2026-02-13 975,385 989,213 -13,828 15.91
    2026-01-30 989,213 970,207 +19,006 11.33
    2026-01-15 970,207 996,202 -25,995 9.83
    2025-12-31 996,202 872,557 +123,645 8.70
    2025-12-15 872,557 811,303 +61,254 10.80
    2025-11-28 811,303 761,904 +49,399 9.60
    2025-11-14 761,904 745,877 +16,027 12.23
    2025-10-31 745,877 738,062 +7,815 12.32
    2025-10-15 738,062 720,752 +17,310 6.75
    2025-09-30 720,752 711,938 +8,814 14.84
    2025-09-15 711,938 692,382 +19,556 14.01

    Full FINRA short interest reporting calendar

    Showing 1–24 of 24 settlements
    Key facts CIK 1370416 CUSIP 960908507 13F (30d) 14 filings 14 filers Visit website