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ACHV · Achieve Life Sciences, Inc. · Short Interest

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$6.51 +0.00 (+0.00%) At close · Oct 21
Russell 2000 member Rebalance outlook locked
Market Cap
$675.04M
Shares
102.90M
Volume · Oct 21 2.47M Avg daily vol (3M) 1.44M

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 →

ACHV Latest Reported Short Interest

FINRA reported 17,474,108 ACHV shares sold short as of the September 30, 2026 settlement date, an increase of 1,480,294 shares. Days to cover was 10.88 based on FINRA's reported average daily volume.

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

ACHV Short Interest Forecast

Equibles' model estimates 17,446,525 shares sold short for the October 15, 2026 settlement, -0.2% versus the latest reported position, with a likely range of 16,060,536 to 18,833,759 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 61% chance it falls
17,446,525 -0.2% vs reported
Likely range 16,060,536 to 18,833,759 The latest estimate appears in the chart below. Official release expected Oct 26. Methodology
Short Squeeze Score
81/100
Short interest 17.0% of shares — P96 Days to cover 10.9 — P93 Price vs VWAP -11.8% — P33 Short-volume trend +19.7% — P94 Short interest change +9.3% — P71 Worst FTD 0.04% of shares — P73

Positioning score 80.9 + 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 2026-10-22 05:39 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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    • 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 17,474,108 15,993,814 +1,480,294 10.88
    2026-09-15 15,993,814 16,447,645 -453,831 9.10
    2026-08-31 16,447,645 16,415,450 +32,195 12.19
    2026-08-14 16,415,450 16,273,408 +142,042 12.76
    2026-07-31 16,273,408 14,730,069 +1,543,339 15.04
    2026-07-15 14,730,069 12,582,151 +2,147,918 7.77
    2026-06-30 12,582,151 8,230,908 +4,351,243 3.32
    2026-06-15 8,230,908 7,675,144 +555,764 6.05
    2026-05-29 7,675,144 7,244,501 +430,643 5.45
    2026-05-15 7,244,501 6,890,549 +353,952 5.63
    2026-04-30 6,890,549 6,845,606 +44,943 2.66
    2026-04-15 6,845,606 7,117,982 -272,376 10.34
    2026-03-31 7,117,982 7,012,431 +105,551 6.79
    2026-03-13 7,012,431 6,726,321 +286,110 18.44
    2026-02-27 6,726,321 6,762,071 -35,750 23.37
    2026-02-13 6,762,071 6,820,353 -58,282 13.64
    2026-01-30 6,820,353 6,821,824 -1,471 6.67
    2026-01-15 6,821,824 6,558,548 +263,276 10.70
    2025-12-31 6,558,548 6,062,041 +496,507 11.02
    2025-12-15 6,062,041 6,380,019 -317,978 10.44
    2025-11-28 6,380,019 6,315,019 +65,000 10.25
    2025-11-14 6,315,019 6,095,362 +219,657 8.89
    2025-10-31 6,095,362 4,735,602 +1,359,760 1.72

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 949858 CUSIP 004468500 13F (30d) 11 filings 11 filers Visit website Investor relations