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PLUG · Plug Power Inc · Short Interest

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$1.92 +0.03 (+1.32%)
Russell 2000 member Rebalance outlook locked
Market Cap
$2.77B
Shares
1.40B
Volume · Oct 2 6.75M Avg daily vol (3M) 53.59M

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 →

PLUG Latest Reported Short Interest

FINRA reported 287,260,138 PLUG shares sold short as of the September 15, 2026 settlement date, a decrease of 3,700,582 shares. Days to cover was 6.09 based on FINRA's reported average daily volume.

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

PLUG Short Interest Forecast

Equibles' model estimates 295,740,020 shares sold short for the September 30, 2026 settlement, +3.0% versus the latest reported position, with a likely range of 269,911,568 to 324,349,566 shares. This model prediction uses FINRA data through September 30, 2026; FINRA's official release is expected October 9, 2026.

Model estimate

Expected Sep 30 short interest

as of Sep 30 Medium confidence 57% chance it rises
295,740,020 +3.0% vs reported
Likely range 269,911,568 to 324,349,566 The latest estimate appears in the chart below. Official release expected Oct 9. Methodology
Short Squeeze Score
65/100
Short interest 20.6% of shares — P98 Days to cover 6.1 — P72 Price vs VWAP -12.9% — P27 Short-volume trend -2.5% — P35 Short interest change -1.3% — P37 Worst FTD 0.11% of shares — P85

Positioning score 65.4 + 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 (2026-09-15). 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 2026-10-02 14:12 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

1M 3M 6M 1Y 5Y All
Dimensions
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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-10-15 Scheduled
    FINRA publishes Oct 26
    		 — — — —
    2026-09-30 Scheduled
    FINRA publishes Oct 9
    		 — — — —
    2026-09-15 287,260,138 290,960,720 -3,700,582 6.09
    2026-08-31 290,960,720 290,919,389 +41,331 5.19
    2026-08-14 290,919,389 294,021,600 -3,102,211 4.04
    2026-07-31 294,021,600 330,057,977 -36,036,377 6.00
    2026-07-15 330,057,977 340,731,106 -10,673,129 6.91
    2026-06-30 340,731,106 339,623,154 +1,107,952 6.03
    2026-06-15 339,623,154 347,303,584 -7,680,430 5.82
    2026-05-29 347,303,584 340,711,258 +6,592,326 4.14
    2026-05-15 340,711,258 343,460,531 -2,749,273 3.55
    2026-04-30 343,460,531 344,599,730 -1,139,199 4.42
    2026-04-15 344,599,730 339,721,877 +4,877,853 4.80
    2026-03-31 339,721,877 329,084,206 +10,637,671 5.26
    2026-03-13 329,084,206 327,292,724 +1,791,482 3.36
    2026-02-27 327,292,724 346,597,509 -19,304,785 4.04
    2026-02-13 346,597,509 348,414,622 -1,817,113 3.56
    2026-01-30 348,414,622 340,177,277 +8,237,345 2.88
    2026-01-15 340,177,277 348,127,252 -7,949,975 3.58
    2025-12-31 348,127,252 343,021,901 +5,105,351 4.10
    2025-12-15 343,021,901 336,107,447 +6,914,454 3.38
    2025-11-28 336,107,447 305,087,014 +31,020,433 3.01
    2025-11-14 305,087,014 310,624,243 -5,537,229 2.52
    2025-10-31 310,624,243 331,367,320 -20,743,077 2.96
    2025-10-15 331,367,320 383,764,248 -52,396,928 1.47

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1093691 CUSIP 72919P202 13F (30d) 22 filings 16 filers Visit website Investor relations