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AMRN · Amarin Corp Plcuk · Short Interest

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$12.32 +0.27 (+2.25%) Play latest call Q3 2026 earnings call transcript
Rebalance outlook locked
Market Cap
$506.61M
Shares
42.04M
Volume · Nov 4 33.45K Avg daily vol (3M) 69.27K

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 →

AMRN Latest Reported Short Interest

FINRA reported 532,662 AMRN shares sold short as of the October 15, 2026 settlement date, an increase of 4,289 shares. Days to cover was 7.28 based on FINRA's reported average daily volume.

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

AMRN Short Interest Forecast

Equibles' model estimates 501,884 shares sold short for the October 30, 2026 settlement, -5.8% versus the latest reported position, with a likely range of 432,249 to 566,530 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 Low confidence 61% chance it falls
501,884 -5.8% vs reported
Likely range 432,249 to 566,530 The latest estimate appears in the chart below. Official release expected Nov 10. Methodology
Short Squeeze Score
49/100
Short interest 1.3% of shares — P42 Days to cover 7.3 — P81 Price vs VWAP -8.5% — P41 Short-volume trend -1.2% — P46 Short interest change +0.8% — P55 Worst FTD 0.00% of shares — P20

Positioning score 49.4 + 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 (2026-10-15). 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 17:18 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
    2026-11-13 Scheduled
    FINRA publishes Nov 24
    		 — — — —
    2026-10-30 Scheduled
    FINRA publishes Nov 10
    		 — — — —
    2026-10-15 532,662 528,373 +4,289 7.28
    2026-09-30 528,373 525,845 +2,528 10.54
    2026-09-15 525,845 511,002 +14,843 10.10
    2026-08-31 511,002 525,685 -14,683 4.66
    2026-08-14 525,685 532,113 -6,428 10.80
    2026-07-31 532,113 513,202 +18,911 9.77
    2026-07-15 513,202 542,861 -29,659 6.44
    2026-06-30 542,861 613,483 -70,622 5.29
    2026-06-15 613,483 624,093 -10,610 5.79
    2026-05-29 624,093 620,219 +3,874 14.85
    2026-05-15 620,219 673,967 -53,748 8.75
    2026-04-30 673,967 426,751 +247,216 7.16
    2026-04-15 426,751 455,457 -28,706 11.69
    2026-03-31 455,457 446,956 +8,501 10.12
    2026-03-13 446,956 438,392 +8,564 4.79
    2026-02-27 438,392 410,128 +28,264 4.71
    2026-02-13 410,128 419,315 -9,187 5.87
    2026-01-30 419,315 409,310 +10,005 4.67
    2026-01-15 409,310 412,528 -3,218 4.00
    2025-12-31 412,528 406,783 +5,745 4.42
    2025-12-15 406,783 416,191 -9,408 4.39
    2025-11-28 416,191 394,621 +21,570 5.65
    2025-11-14 394,621 370,983 +23,638 3.84

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 897448 CUSIP 023111404 13F (30d) 26 filings 20 filers Visit website Investor relations