OMER short interest
Omeros · settlement of Oct 30, 2026
As of Oct 30, 2026, 12.8M OMER shares were sold short, up 12.3% from the Oct 15, 2026 count. At the stock's average daily volume, that is 9.6 days to cover.
Omeros research · OMER trades by Congress · Short interest movers · Most shorted stocks · Source
- Shares sold short
- 12.8M12,833,757
- Change
- +12.3%from 11.4M
- Of shares outstanding
- 17.7%#207 of 3,781 stocks measured
- Days to cover
- 9.6at the average daily volume
- Average daily volume
- 1.3Mshares, as FINRA reports it
- Most in 24 settlements
- 18.1MJun 15, 2026
Every settlement
24 settlements, newest first| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| Oct 30, 2026 | 12,833,757 | +12.3% | 1,336,486 | 9.6 |
| Oct 15, 2026 | 11,428,767 | +0.4% | 939,029 | 12 |
| Sep 30, 2026 | 11,382,531 | −8.9% | 1,638,478 | 7.0 |
| Sep 15, 2026 | 12,491,576 | −2.1% | 1,341,022 | 9.3 |
| Aug 31, 2026 | 12,758,406 | −12.8% | 1,747,098 | 7.3 |
| Aug 14, 2026 | 14,639,133 | −5.1% | 2,981,819 | 4.9 |
| Jul 31, 2026 | 15,420,416 | +2.2% | 1,561,802 | 9.9 |
| Jul 15, 2026 | 15,092,070 | −0.3% | 1,273,680 | 12 |
| Jun 30, 2026 | 15,136,140 | −16.4% | 2,695,791 | 5.6 |
| Jun 15, 2026 | 18,103,605 | +11.3% | 2,145,416 | 8.4 |
| May 29, 2026 | 16,271,790 | +2.1% | 1,798,109 | 9.1 |
| May 15, 2026 | 15,940,028 | +1.0% | 1,470,074 | 11 |
| Apr 30, 2026 | 15,789,527 | −6.6% | 1,206,519 | 13 |
| Apr 15, 2026 | 16,900,273 | −1.0% | 1,478,463 | 11 |
| Mar 31, 2026 | 17,069,802 | −1.4% | 908,718 | 19 |
| Mar 13, 2026 | 17,312,128 | +0.1% | 780,372 | 22 |
| Feb 27, 2026 | 17,289,620 | −3.7% | 816,280 | 21 |
| Feb 13, 2026 | 17,959,196 | +1.7% | 1,015,590 | 18 |
| Jan 30, 2026 | 17,661,898 | +7.5% | 1,692,353 | 10 |
| Jan 15, 2026 | 16,429,140 | +24.0% | 3,516,886 | 4.7 |
| Dec 31, 2025 | 13,247,185 | −4.8% | 5,093,923 | 2.6 |
| Dec 15, 2025 | 13,919,634 | +4.3% | 1,470,045 | 9.5 |
| Nov 28, 2025 | 13,350,021 | −0.0% | 1,711,959 | 7.8 |
| Nov 14, 2025 | 13,353,498 | — | 1,715,015 | 7.8 |
Source
Short interest is the number of shares sold short and not yet bought back. Brokers report it to FINRA for two settlement dates a month, the middle and the end, and FINRA publishes each count about a week later. It is not a daily figure: between settlements no one publishes a count. Days to cover is the short interest divided by the average daily volume FINRA reports beside it. A rising count is shown in red and a falling one in green.