AMLX · Amylyx Pharmaceuticals, Inc.

$18.50 +1.05 (+6.02%) At close · Jul 21

Market Cap

$2.06B

111.19M

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

85/100

Short interest 12.9% of shares — P93 Days to cover 7.1 — P90 Price vs VWAP +14.8% — P92 Short-volume trend +19.0% — P94 Short interest change +9.6% — P66 Worst FTD 0.01% of shares — P44

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.

1M 3M 6M 1Y 5Y All

Short Interest History

Settlement Date	Current Position	Previous Position	Change	Avg Daily Volume	Days to Cover
2026-06-30	14,385,180	13,121,697	+1,263,483	2,038,056	7.06
2026-06-15	13,121,697	14,957,523	-1,835,826	1,616,733	8.12
2026-05-29	14,957,523	14,514,401	+443,122	916,139	16.33
2026-05-15	14,514,401	14,800,969	-286,568	1,193,178	12.16
2026-04-30	14,800,969	14,831,510	-30,541	1,037,735	14.26
2026-04-15	14,831,510	14,231,261	+600,249	1,212,978	12.23
2026-03-31	14,231,261	13,864,210	+367,051	1,006,491	14.14
2026-03-13	13,864,210	14,497,298	-633,088	1,110,465	12.49
2026-02-27	14,497,298	14,310,589	+186,709	760,335	19.07
2026-02-13	14,310,589	13,752,736	+557,853	820,962	17.43
2026-01-30	13,752,736	13,437,426	+315,310	2,088,336	6.59
2026-01-15	13,437,426	13,642,380	-204,954	1,744,583	7.70
2025-12-31	13,642,380	12,068,995	+1,573,385	1,816,629	7.51
2025-12-15	12,068,995	11,623,612	+445,383	1,107,605	10.90
2025-11-28	11,623,612	11,911,669	-288,057	1,399,419	8.31
2025-11-14	11,911,669	10,449,446	+1,462,223	1,591,901	7.48
2025-10-31	10,449,446	9,616,175	+833,271	1,525,945	6.85
2025-10-15	9,616,175	10,066,534	-450,359	1,918,584	5.01
2025-09-30	10,066,534	8,774,952	+1,291,582	1,976,363	5.09
2025-09-15	8,774,952	8,410,918	+364,034	2,262,263	3.88
2025-08-29	8,410,918	7,433,417	+977,501	1,545,878	5.44
2025-08-15	7,433,417	7,192,631	+240,786	890,116	8.35
2025-07-31	7,192,631	7,466,420	-273,789	1,215,070	5.92

Showing 1–23 of 23 settlements

Key facts CIK 1658551 CUSIP 03237H101 13F (30d) 10 filings 10 filers Visit website Investor relations