How shorted is Omeros Corporation right now?

21.42% of Omeros Corporation's (OMER) shares outstanding were reported short for settlement date 31 Jul 2026, per FINRA's consolidated short interest report.

What does this number include?

FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.

Why does it only update twice a month?

US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.

Which funds are short?

US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.

How shorted is Omeros Corporation?

More shorted than 96% of the 2,877 ranked US companies

21.42%

of shares outstanding reported short · settlement date 31 Jul 2026

vs previous report: +0.46
5 reports (~10 weeks): −0.72

Embed this chart

Paste this snippet to embed the interactive chart. It updates with each FINRA report and keeps the source attribution. Preview

<iframe src="https://howshorted.com/embed/us/omer/" width="100%" height="430" style="border:0" loading="lazy" title="Omeros Corporation short interest chart"></iframe>
<p>Source: FINRA data compiled by <a href="https://howshorted.com/us/company/omer/">howshorted.com</a></p>

Cite this page

Short position data for Omeros Corporation: FINRA, compiled by howshorted.com, settlement date 31 Jul 2026. https://howshorted.com/us/company/omer/

History

Settlement date	Short %	Change
31 Jul 2026	21.42%	+0.46
15 Jul 2026	20.96%	−0.06
30 Jun 2026	21.02%	−4.13
15 Jun 2026	25.15%	+2.55
29 May 2026	22.60%	+0.46
15 May 2026	22.14%	+0.21
30 Apr 2026	21.93%	−1.54
15 Apr 2026	23.47%	−0.24
31 Mar 2026	23.71%	−0.71
13 Mar 2026	24.42%	+0.03
27 Feb 2026	24.39%	−0.94
13 Feb 2026	25.33%	+0.42
30 Jan 2026	24.91%	+1.74
15 Jan 2026	23.17%	+4.49
31 Dec 2025	18.68%	−0.95
15 Dec 2025	19.63%	+0.80
28 Nov 2025	18.83%	0.00
14 Nov 2025	18.83%	+0.97
31 Oct 2025	17.86%	−1.08
15 Oct 2025	18.94%	+0.34
30 Sep 2025	18.60%	−1.24
15 Sep 2025	19.84%	+0.53
29 Aug 2025	19.31%	−0.37
15 Aug 2025	19.68%	−2.34
31 Jul 2025	22.02%	–

Frequently asked questions

How shorted is Omeros Corporation right now?: 21.42% of Omeros Corporation's (OMER) shares outstanding were reported short for settlement date 31 Jul 2026, per FINRA's consolidated short interest report.
What does this number include?: FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
Why does it only update twice a month?: US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
Which funds are short?: US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.