OMER
Omeros Corporation
stockNASDAQ
At CloseNov 3, 2026 3:59:57 PM EST
18.27USD+2.468%(+0.44)886,831
As of 2026-10-15, there were 11,428,767 shares short with a short interest of 16.50%.
OMER Short Interest - Official
OMER Short Position Change - Official
OMER Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-10-15 | 16.50 | 11,428,767 | 12.17 | +46,236 | +0.41 | 72,388,316 | 69,285,955 |
| 2026-09-30 | 16.31 | 11,382,531 | 6.95 | -1,109,045 | -8.88 | 72,388,316 | 69,800,964 |
| 2026-09-15 | 17.90 | 12,491,576 | 9.31 | -266,830 | -2.09 | 72,388,316 | 69,800,964 |
| 2026-08-31 | 18.28 | 12,758,406 | 7.30 | -1,880,727 | -12.85 | 72,388,316 | 69,800,964 |
| 2026-08-14 | 20.97 | 14,639,133 | 4.91 | -781,283 | -5.07 | 72,388,316 | 69,800,964 |
| 2026-07-31 | 22.09 | 15,420,416 | 9.87 | +328,346 | +2.18 | 72,375,355 | 69,800,964 |
| 2026-07-15 | 21.62 | 15,092,070 | 11.85 | -44,070 | -0.29 | 72,375,355 | 69,800,964 |
| 2026-06-30 | 21.68 | 15,136,140 | 5.61 | -2,967,465 | -16.39 | 72,375,355 | 69,800,964 |
| 2026-06-15 | 25.94 | 18,103,605 | 8.44 | +2,163,577 | +13.57 | 72,375,355 | 69,786,489 |
| 2026-05-15 | 22.89 | 15,940,028 | 10.84 | +150,501 | +0.95 | 72,375,355 | 69,638,886 |
| 2026-04-30 | 23.15 | 15,789,527 | 13.09 | -1,110,746 | -6.57 | 71,996,171 | 68,190,611 |
| 2026-04-15 | 24.78 | 16,900,273 | 11.43 | -169,529 | -0.99 | 71,996,171 | 68,190,611 |
| 2026-03-31 | 25.03 | 17,069,802 | 18.78 | -242,326 | -1.40 | 70,900,459 | 68,190,611 |
| 2026-03-13 | 25.39 | 17,312,128 | 22.18 | +22,508 | +0.13 | 70,900,459 | 68,190,611 |
| 2026-02-27 | 25.35 | 17,289,620 | 21.18 | -669,576 | -3.73 | 70,900,459 | 68,190,611 |
| 2026-02-13 | 26.34 | 17,959,196 | 17.68 | +297,298 | +1.68 | 70,900,459 | 68,190,611 |
| 2026-01-30 | 25.90 | 17,661,898 | 10.44 | +1,232,758 | +7.50 | 70,900,459 | 68,190,611 |
| 2026-01-15 | 24.09 | 16,429,140 | 4.67 | +3,181,955 | +24.02 | 70,900,459 | 68,190,611 |
| 2025-12-31 | 19.43 | 13,247,185 | 2.60 | -672,449 | -4.83 | 70,900,459 | 68,190,611 |
| 2025-12-15 | 20.41 | 13,919,634 | 9.47 | +569,613 | +4.27 | 70,900,459 | 68,190,611 |
| 2025-11-28 | 19.61 | 13,350,021 | 7.80 | -3,477 | -0.03 | 70,900,459 | 68,077,312 |
| 2025-11-14 | 20.43 | 13,353,498 | 7.79 | +1,198,417 | +9.86 | 68,055,826 | 65,356,051 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.