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RUN · Sunrun Inc. · Short Interest

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$7.85 +0.21 (+2.68%)
S&P 600 member Russell 2000 member Rebalance outlook locked
Market Cap
$1.95B
Shares
240.85M
Volume · Oct 2 1.7M Avg daily vol (3M) 8.73M

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 →

RUN Latest Reported Short Interest

FINRA reported 71,121,215 RUN shares sold short as of the September 15, 2026 settlement date, an increase of 2,617,672 shares. Days to cover was 10.14 based on FINRA's reported average daily volume.

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

RUN Short Interest Forecast

Equibles' model estimates 71,223,340 shares sold short for the September 30, 2026 settlement, +0.1% versus the latest reported position, with a likely range of 65,125,720 to 77,317,282 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 Low confidence 48% chance it rises
71,223,340 +0.1% vs reported
Likely range 65,125,720 to 77,317,282 The latest estimate appears in the chart below. Official release expected Oct 9. Methodology
Short Squeeze Score
67/100
Short interest 29.5% of shares — P99 Days to cover 10.1 — P88 Price vs VWAP -23.6% — P11 Short-volume trend -8.8% — P18 Short interest change +3.8% — P58 Worst FTD 0.20% of shares — P90

Positioning score 66.7 + 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 14:34 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
    2026-10-15 Scheduled
    FINRA publishes Oct 26
    		 — — — —
    2026-09-30 Scheduled
    FINRA publishes Oct 9
    		 — — — —
    2026-09-15 71,121,215 68,503,543 +2,617,672 10.14
    2026-08-31 68,503,543 65,008,816 +3,494,727 9.78
    2026-08-14 65,008,816 64,700,228 +308,588 6.34
    2026-07-31 64,700,228 65,915,171 -1,214,943 7.16
    2026-07-15 65,915,171 65,073,480 +841,691 6.38
    2026-06-30 65,073,480 57,520,218 +7,553,262 4.58
    2026-06-15 57,520,218 59,724,111 -2,203,893 6.86
    2026-05-29 59,724,111 59,353,305 +370,806 7.90
    2026-05-15 59,353,305 56,138,154 +3,215,151 6.47
    2026-04-30 56,138,154 53,413,724 +2,724,430 6.28
    2026-04-15 53,413,724 54,663,298 -1,249,574 6.75
    2026-03-31 54,663,298 55,012,626 -349,328 7.09
    2026-03-13 55,012,626 54,462,568 +550,058 4.18
    2026-02-27 54,462,568 58,868,726 -4,406,158 4.35
    2026-02-13 58,868,726 56,757,704 +2,111,022 7.09
    2026-01-30 56,757,704 55,983,718 +773,986 5.95
    2026-01-15 55,983,718 59,639,076 -3,655,358 8.59
    2025-12-31 59,639,076 57,503,114 +2,135,962 10.83
    2025-12-15 57,503,114 54,844,704 +2,658,410 10.35
    2025-11-28 54,844,704 53,016,521 +1,828,183 6.65
    2025-11-14 53,016,521 54,786,932 -1,770,411 4.97
    2025-10-31 54,786,932 56,240,325 -1,453,393 8.44
    2025-10-15 56,240,325 58,042,482 -1,802,157 5.27

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1469367 CUSIP 86771W105 13F (30d) 10 filings 9 filers Visit website Investor relations