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GOSS · Gossamer Bio, Inc. · Short Interest

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$9.28 -0.17 (-1.80%) At close · Nov 3 Play latest call Q2 2026 earnings call transcript
Rebalance outlook locked
Going-concern doubt — flagged Aug 13, 2026

Substantial doubt about the company's ability to continue as a going concern.

“The Company's existing cash and cash equivalents are not sufficient to fund operating plans for at least one year from the issuance date of these financial statements. Accordingly, these conditions raise substantial doubt about the Company's ability to continue as a going concern.”
View the 10-Q filed Aug 13, 2026
Market Cap
$57.75M
Shares
6.11M
Volume · Nov 3 139.45K Avg daily vol (38 sessions) 273.69K

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 →

GOSS Latest Reported Short Interest

FINRA reported 1,436,240 GOSS shares sold short as of the October 15, 2026 settlement date, an increase of 198,519 shares. Days to cover was 5.12 based on FINRA's reported average daily volume.

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

GOSS Short Interest Forecast

Equibles' model estimates 1,285,717 shares sold short for the October 30, 2026 settlement, -10.5% versus the latest reported position, with a likely range of 1,082,035 to 1,484,494 shares. This model prediction uses FINRA data through October 30, 2026; FINRA's official release is expected November 10, 2026.

Model estimate

Expected Oct 30 short interest

as of Oct 30 Medium confidence 67% chance it falls
1,285,717 -10.5% vs reported
Likely range 1,082,035 to 1,484,494 The latest estimate appears in the chart below. Official release expected Nov 10. Methodology
Short Squeeze Score
80/100
Short interest 23.5% of shares — P99 Days to cover 5.1 — P67 Price vs VWAP -11.1% — P37 Short-volume trend +15.8% — P92 Short interest change +16.0% — P83 Worst FTD 57.86% of shares — P100

Positioning score 80.5 + 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 (2026-10-15). 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 2026-11-04 05:59 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
    2026-11-13 Scheduled
    FINRA publishes Nov 24
    		 — — — —
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 1,436,240 1,237,721 +198,519 5.12
    2026-09-30 1,237,721 948,623 +289,098 3.50
    2026-09-15 948,623 1,032,916 -84,293 5.07
    2026-08-31 1,032,916 1,084,831 -51,915 2.79
    2026-08-14 1,084,831 1,187,325 -102,494 7.37
    2026-07-31 1,187,325 914,736 +272,589 1.49
    2026-07-15 914,736 671,200 +243,536 3.79
    2026-06-30 671,200 702,650 -31,450 3.22
    2026-06-15 702,650 785,199 -82,549 3.41
    2026-05-29 785,199 510,483 +274,716 2.84
    2026-05-15 510,483 500,229 +10,254 11.48
    2026-04-30 500,229 502,451 -2,222 7.65
    2026-04-15 502,451 468,754 +33,697 4.85
    2026-03-31 468,754 457,779 +10,975 2.75
    2026-03-13 457,779 433,944 +23,835 2.70
    2026-02-27 433,944 388,654 +45,290 1.00
    2026-02-13 388,654 334,740 +53,914 5.10
    2026-01-30 334,740 315,281 +19,459 5.68
    2026-01-15 315,281 301,435 +13,846 5.43
    2025-12-31 301,435 253,886 +47,549 4.66
    2025-12-15 253,886 292,982 -39,096 5.73
    2025-11-28 292,982 305,279 -12,297 8.22
    2025-11-14 305,279 311,480 -6,201 9.45

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1728117 CUSIP 38341P201 13F (30d) 20 filings 13 filers Visit website Investor relations