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PI · Impinj Inc

$136.03 -1.69 (-1.23%) At close · Jul 21
Market Cap
$4.10B
Shares
30.46M

Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.

Short Squeeze Score
77/100
Short interest 11.0% of shares — P91 Days to cover 7.4 — P91 Price vs VWAP -0.8% — P50 Short-volume trend +8.6% — P79 Short interest change -2.4% — P38 Worst FTD 0.17% of shares — P81

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-30). 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
2026-06-30 3,335,442 3,416,450 -81,008 7.37
2026-06-15 3,416,450 3,253,966 +162,484 7.62
2026-05-29 3,253,966 2,897,261 +356,705 7.14
2026-05-15 2,897,261 3,050,491 -153,230 5.98
2026-04-30 3,050,491 3,074,460 -23,969 4.59
2026-04-15 3,074,460 3,091,059 -16,599 10.50
2026-03-31 3,091,059 3,000,911 +90,148 6.51
2026-03-13 3,000,911 2,978,592 +22,319 3.59
2026-02-27 2,978,592 2,750,803 +227,789 5.88
2026-02-13 2,750,803 2,543,075 +207,728 2.34
2026-01-30 2,543,075 2,624,140 -81,065 3.95
2026-01-15 2,624,140 2,643,182 -19,042 3.69
2025-12-31 2,643,182 2,827,539 -184,357 4.63
2025-12-15 2,827,539 2,976,184 -148,645 4.30
2025-11-28 2,976,184 2,574,699 +401,485 5.90
2025-11-14 2,574,699 2,564,318 +10,381 4.91
2025-10-31 2,564,318 3,121,424 -557,106 4.03
2025-10-15 3,121,424 3,125,945 -4,521 6.89
2025-09-30 3,125,945 3,294,310 -168,365 6.34
2025-09-15 3,294,310 3,862,973 -568,663 4.47
2025-08-29 3,862,973 3,825,140 +37,833 9.78
2025-08-15 3,825,140 3,483,738 +341,402 7.45
2025-07-31 3,483,738 2,846,354 +637,384 5.11
Showing 1–23 of 23 settlements
Key facts CIK 1114995 CUSIP 453204109 13F (30d) 36 filings 35 filers Visit website Investor relations