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AVTR · Avantor, Inc.

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$13.66 -0.19 (-1.37%) At close · Aug 14
Market Cap
$9.33B
Shares
682.76M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

Model estimate

Expected Aug 14 short interest

as of Aug 14
50,345,178 -5.3% vs reported
The latest estimate appears in the chart below. Official release expected Aug 25. Methodology
Short Squeeze Score
58/100
Short interest 7.8% of shares — P84 Days to cover 3.4 — P52 Price vs VWAP +27.5% — P96 Short-volume trend -12.7% — P13 Short interest change -5.0% — P39 Worst FTD 0.00% of shares — P16

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-07-31). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.

Short Interest History

Settlement Date Current Position Previous Position Change Days to Cover
2026-08-31 Scheduled
FINRA publishes Sep 10
2026-08-14 Scheduled
FINRA publishes Aug 25
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
2025-11-14 25,588,353 21,944,903 +3,643,450 2.98
2025-10-31 21,944,903 23,465,890 -1,520,987 1.35
2025-10-15 23,465,890 26,005,227 -2,539,337 2.28
2025-09-30 26,005,227 25,063,765 +941,462 2.94
2025-09-15 25,063,765 30,007,577 -4,943,812 2.88
2025-08-29 30,007,577 33,340,094 -3,332,517 2.20
Showing 1–23 of 23 settlements
Key facts CIK 1722482 CUSIP 05352A100 13F (30d) 448 filings 422 filers Visit website Investor relations