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AMPX · Amprius Technologies, Inc.

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$9.89 +0.26 (+2.70%) At close · Sep 4
Russell 2000 member Rebalance outlook locked
Market Cap
$1.44B
Shares
146.08M

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

AMPX Latest Reported Short Interest

FINRA reported 22,146,891 AMPX shares sold short as of the August 14, 2026 settlement date, a decrease of 1,781,211 shares. Days to cover was 3.09 based on FINRA's reported average daily volume.

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

AMPX Short Interest Forecast

Equibles' model estimates 21,343,885 shares sold short for the August 31, 2026 settlement, -3.6% versus the latest reported position, with a likely range of 19,079,066 to 23,785,770 shares. This model prediction uses FINRA data through August 31, 2026; FINRA's official release is expected September 10, 2026.

Model estimate

Expected Aug 31 short interest

as of Aug 31 Low confidence 60% chance it falls
21,343,885 -3.6% vs reported
Likely range 19,079,066 to 23,785,770 The latest estimate appears in the chart below. Official release expected Sep 10. Methodology
Short Squeeze Score
55/100
Short interest 15.2% of shares — P96 Days to cover 3.1 — P50 Price vs VWAP -20.6% — P12 Short-volume trend -3.4% — P38 Short interest change -7.4% — P30 Worst FTD 0.02% of shares — P63

Peer-relative percentile rank across all listed securities reporting short interest at the latest settlement date (2026-08-14). 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.

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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-09-15 Scheduled
    FINRA publishes Sep 24
    		 — — — —
    2026-08-31 Scheduled
    FINRA publishes Sep 10
    		 — — — —
    2026-08-14 22,146,891 23,928,102 -1,781,211 3.09
    2026-07-31 23,928,102 28,034,609 -4,106,507 4.16
    2026-07-15 28,034,609 26,309,329 +1,725,280 4.22
    2026-06-30 26,309,329 22,816,138 +3,493,191 3.21
    2026-06-15 22,816,138 25,637,309 -2,821,171 3.13
    2026-05-29 25,637,309 22,692,523 +2,944,786 2.35
    2026-05-15 22,692,523 23,225,858 -533,335 2.24
    2026-04-30 23,225,858 21,551,498 +1,674,360 2.72
    2026-04-15 21,551,498 17,909,138 +3,642,360 2.96
    2026-03-31 17,909,138 17,846,503 +62,635 2.27
    2026-03-13 17,846,503 19,141,715 -1,295,212 1.28
    2026-02-27 19,141,715 17,042,918 +2,098,797 3.20
    2026-02-13 17,042,918 17,620,761 -577,843 1.86
    2026-01-30 17,620,761 17,246,418 +374,343 1.79
    2026-01-15 17,246,418 16,283,031 +963,387 2.48
    2025-12-31 16,283,031 13,292,515 +2,990,516 2.75
    2025-12-15 13,292,515 13,514,161 -221,646 2.67
    2025-11-28 13,514,161 16,066,241 -2,552,080 2.29
    2025-11-14 16,066,241 15,356,669 +709,572 1.66
    2025-10-31 15,356,669 16,851,368 -1,494,699 1.84
    2025-10-15 16,851,368 18,024,182 -1,172,814 1.53
    2025-09-30 18,024,182 13,651,786 +4,372,396 1.71
    2025-09-15 13,651,786 11,457,481 +2,194,305 1.84

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1899287 CUSIP 03214Q108 13F (30d) 198 filings 196 filers Visit website Investor relations