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SLS · SELLAS Life Sciences Group, Inc. · Short Interest

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$11.35 -0.79 (-6.51%) At close · Oct 22
Russell 2000 member Rebalance outlook locked
Market Cap
$2.45B
Shares
201.95M
Volume · Oct 22 6.51M Avg daily vol (3M) 6.5M

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 →

SLS Latest Reported Short Interest

FINRA reported 55,128,974 SLS shares sold short as of the September 30, 2026 settlement date, a decrease of 3,939,656 shares. Days to cover was 9.45 based on FINRA's reported average daily volume.

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

SLS Short Interest Forecast

Equibles' model estimates 55,885,637 shares sold short for the October 15, 2026 settlement, +1.4% versus the latest reported position, with a likely range of 51,965,285 to 60,131,479 shares. This model prediction uses FINRA data through October 15, 2026; FINRA's official release is expected October 26, 2026.

Model estimate

Expected Oct 15 short interest

as of Oct 15 Low confidence 47% chance it rises
55,885,637 +1.4% vs reported
Likely range 51,965,285 to 60,131,479 The latest estimate appears in the chart below. Official release expected Oct 26. Methodology
Short Squeeze Score
76/100
Short interest 27.3% of shares — P99 Days to cover 9.5 — P90 Price vs VWAP -7.2% — P45 Short-volume trend +2.3% — P62 Short interest change -6.7% — P31 Worst FTD 0.20% of shares — P89

Positioning score 75.8 + 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 (2026-09-30). 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 2026-10-23 02:13 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
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 Scheduled
    FINRA publishes Oct 26
    		 — — — —
    2026-09-30 55,128,974 59,068,630 -3,939,656 9.45
    2026-09-15 59,068,630 57,926,912 +1,141,718 8.60
    2026-08-31 57,926,912 56,371,865 +1,555,047 6.88
    2026-08-14 56,371,865 54,975,815 +1,396,050 10.44
    2026-07-31 54,975,815 55,280,869 -305,054 7.89
    2026-07-15 55,280,869 63,307,462 -8,026,593 5.93
    2026-06-30 63,307,462 63,360,925 -53,463 4.75
    2026-06-15 63,360,925 61,000,107 +2,360,818 9.25
    2026-05-29 61,000,107 57,070,692 +3,929,415 4.42
    2026-05-15 57,070,692 57,147,188 -76,496 7.14
    2026-04-30 57,147,188 56,642,215 +504,973 11.68
    2026-04-15 56,642,215 53,525,042 +3,117,173 13.63
    2026-03-31 53,525,042 45,790,317 +7,734,725 5.96
    2026-03-13 45,790,317 49,129,452 -3,339,135 6.25
    2026-02-27 49,129,452 46,050,545 +3,078,907 7.79
    2026-02-13 46,050,545 41,330,037 +4,720,508 10.01
    2026-01-30 41,330,037 42,044,430 -714,393 6.26
    2026-01-15 42,044,430 49,429,420 -7,384,990 2.59
    2025-12-31 49,429,420 40,466,622 +8,962,798 4.31
    2025-12-15 40,466,622 33,260,681 +7,205,941 7.07
    2025-11-28 33,260,681 31,792,641 +1,468,040 10.24
    2025-11-14 31,792,641 28,964,581 +2,828,060 8.90
    2025-10-31 28,964,581 25,093,376 +3,871,205 4.73

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1390478 CUSIP 81642T209 13F (30d) 27 filings 27 filers Visit website Investor relations