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RLYB · Rallybio Corp

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$16.99 +0.03 (+0.18%) At close · Aug 14
Market Cap
$90.23M
Shares
5.31M

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 13
59,583 -6.1% vs reported
The latest estimate appears in the chart below. Official release expected Aug 25. Methodology
Short Squeeze Score
54/100
Short interest 1.2% of shares — P43 Days to cover 2.1 — P37 Price vs VWAP +7.0% — P72 Short-volume trend +24.3% — P96 Short interest change -62.7% — P4 Worst FTD 0.13% of shares — P79

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 63,485 170,156 -106,671 2.06
2026-07-15 170,156 408,746 -238,590 3.54
2026-06-30 408,746 425,033 -16,287 8.59
2026-06-15 425,033 586,906 -161,873 4.92
2026-05-29 586,906 578,792 +8,114 11.98
2026-05-15 578,792 1,572,902 -994,110 1.00
2026-04-30 1,572,902 1,405,893 +167,009 28.85
2026-04-15 1,405,893 1,108,870 +297,023 20.66
2026-03-31 1,108,870 797,895 +310,975 10.23
2026-03-13 797,895 44,517 +753,378 1.60
2026-02-27 44,517 38,974 +5,543 1.00
2026-02-13 38,974 141,643 -102,669 1.56
2026-01-30 17,705 14,576 +3,130 1.00
2026-01-15 14,576 13,276 +1,300 1.00
2025-12-31 13,276 15,323 -2,048 1.00
2025-12-15 15,323 17,549 -2,225 1.00
2025-11-28 17,549 21,822 -4,273 1.00
2025-11-14 21,822 28,730 -6,908 1.00
2025-10-31 28,730 35,534 -6,804 1.00
2025-10-15 35,534 41,439 -5,905 1.00
2025-09-30 41,439 52,773 -11,334 1.04
2025-09-15 52,773 76,552 -23,780 1.15
2025-08-29 76,552 96,481 -19,929 1.99
Showing 1–23 of 23 settlements
Key facts CIK 1739410 CUSIP 75120L209 13F (30d) 42 filings 40 filers Visit website Investor relations