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AVTR · Avantor, Inc. · Short Interest

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$15.54 -0.08 (-0.51%) At close · Nov 13 Play latest call Q3 2026 earnings call transcript
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$10.53B
Shares
677.62M
Volume · Nov 13 6.82M Avg daily vol (3M) 8.59M

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 →

AVTR Latest Reported Short Interest

FINRA reported 26,902,221 AVTR shares sold short as of the October 30, 2026 settlement date, a decrease of 7,743,044 shares. Days to cover was 2.00 based on FINRA's reported average daily volume.

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

AVTR Short Interest Forecast

Equibles' model estimates 27,716,470 shares sold short for the November 13, 2026 settlement, +3.0% versus the latest reported position, with a likely range of 24,193,427 to 31,854,611 shares. This model prediction uses FINRA data through November 13, 2026; FINRA's official release is expected November 24, 2026.

Model estimate

Expected Nov 13 short interest

as of Nov 13 Medium confidence 59% chance it rises
27,716,470 +3.0% vs reported
Likely range 24,193,427 to 31,854,611 The latest estimate appears in the chart below. Official release expected Nov 24. Methodology
Short Squeeze Score
41/100
Short interest 4.0% of shares — P65 Days to cover 2.0 — P36 Price vs VWAP -0.2% — P64 Short-volume trend -13.7% — P13 Short interest change -22.3% — P13 Worst FTD 0.00% of shares — P20

Positioning score 41.5 + 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 (2026-10-30). 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 2026-11-15 08:59 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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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-11-30 Scheduled
    FINRA publishes Dec 9
    		 — — — —
    2026-11-13 Scheduled
    FINRA publishes Nov 24
    		 — — — —
    2026-10-30 26,902,221 34,645,265 -7,743,044 2.00
    2026-10-15 34,645,265 39,348,974 -4,703,709 4.58
    2026-09-30 39,348,974 51,373,338 -12,024,364 4.16
    2026-09-15 51,373,338 50,213,671 +1,159,667 6.19
    2026-08-31 50,213,671 52,194,128 -1,980,457 8.66
    2026-08-14 52,194,128 53,171,919 -977,791 6.91
    2026-07-31 53,171,919 55,976,133 -2,804,214 3.37
    2026-07-15 55,976,133 51,956,711 +4,019,422 6.48
    2026-06-30 51,956,711 44,043,913 +7,912,798 6.26
    2026-06-15 44,043,913 40,606,499 +3,437,414 4.36
    2026-05-29 40,606,499 38,720,031 +1,886,468 3.71
    2026-05-15 38,720,031 40,344,011 -1,623,980 4.21
    2026-04-30 40,344,011 42,393,605 -2,049,594 3.79
    2026-04-15 42,393,605 43,873,960 -1,480,355 5.44
    2026-03-31 43,873,960 38,572,963 +5,300,997 5.11
    2026-03-13 38,572,963 39,218,288 -645,325 3.41
    2026-02-27 39,218,288 39,873,526 -655,238 4.46
    2026-02-13 39,873,526 37,710,659 +2,162,867 2.32
    2026-01-30 37,710,659 30,097,069 +7,613,590 2.69
    2026-01-15 30,097,069 28,022,150 +2,074,919 2.81
    2025-12-31 28,022,150 27,279,839 +742,311 2.67
    2025-12-15 27,279,839 30,081,223 -2,801,384 2.67
    2025-11-28 30,081,223 25,588,353 +4,492,870 3.70

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1722482 CUSIP 05352A100 13F (30d) 397 filings 366 filers Visit website Investor relations