Ticker Short Interest
BMRN Short Interest Intelligence
Biomarin Pharmaceutical Inc positioning pressure, squeeze risk, bearish conviction, crowding, days to cover, and price-positioning divergence.
Neutral
Covering Rally
BMRN is classified as Neutral. Latest reported short interest is 10.2M shares; short interest changed -18.4%, price moved +12.2% since the previous report, short interest is in the 30th percentile, and days to cover is in the 10th percentile. Trend context is constructive.
Reported Short Interest
2026-03-31 to 2026-08-14Days To Cover
liquidity pressureShort Interest Change
report-to-reportPrice Context
2026-03-20 to 2026-08-14Squeeze Radar
42Elevated short interest becomes most interesting when price strength forces shorts to defend or cover.
Bearish Conviction
9Rising short interest alongside weak trend can mean the bearish trade is being reinforced, not trapped.
Crowding
21Latest short interest is 10.2M shares and days to cover is 3.69.
Divergence
0Short interest fell while price rose. The bearish trade appears to be unwinding into strength.
Report History
BMRN Short Interest Ledger
| Settlement | Short interest | Previous | Change | Days cover | Average volume |
|---|---|---|---|---|---|
| 14 Aug 2026 | 10202950 | 12504131 | -18.4% | 3.69 | 2767411 |
| 31 Jul 2026 | 12504131 | 14315984 | -12.7% | 7.42 | 1684263 |
| 15 Jul 2026 | 14315984 | 13908847 | 2.9% | 10.16 | 1409304 |
| 30 Jun 2026 | 13908847 | 12516448 | 11.1% | 6.04 | 2301848 |
| 15 Jun 2026 | 12516448 | 11605279 | 7.9% | 6.06 | 2066601 |
| 29 May 2026 | 11605279 | 11359229 | 2.2% | 3.97 | 2921395 |
| 15 May 2026 | 11359229 | 10792859 | 5.3% | 5.42 | 2096087 |
| 30 Apr 2026 | 10792859 | 10151216 | 6.3% | 7.28 | 1482676 |
| 15 Apr 2026 | 10151216 | 8832493 | 14.9% | 6.42 | 1581415 |
| 31 Mar 2026 | 8832493 | 8501110 | 3.9% | 4.20 | 2100926 |
Short interest is delayed, reported on a periodic schedule, and may be revised. The dashboard is research context only and does not prove real-time short activity.