BIS · ProShares UltraShort Nasdaq Biotechnology ETF

$10.97 +0.17 (+1.61%) At close · Sep 4

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

1M 3M 6M 1Y 5Y All

Short Volume

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-09-04	379	0	779	48.7%
2026-09-03	1,393	0	5,217	26.7%
2026-09-02	825	0	4,443	18.6%
2026-09-01	1,901	0	3,074	61.9%
2026-08-31	1,934	0	2,645	73.1%
2026-08-28	257	0	1,934	13.3%
2026-08-27	1,046	0	1,808	57.8%
2026-08-26	1,367	0	1,781	76.7%
2026-08-25	274	0	444	61.7%
2026-08-24	841	0	1,790	47.0%
2026-08-21	1,474	0	6,490	22.7%
2026-08-20	3,977	2,330	8,265	48.1%
2026-08-19	5,194	2,774	9,842	52.8%
2026-08-18	444	0	2,567	17.3%
2026-08-17	6,324	0	9,502	66.6%
2026-08-14	2,243	0	4,620	48.6%
2026-08-13	3,413	0	6,478	52.7%
2026-08-12	924	0	1,187	77.8%
2026-08-11	142	0	1,196	11.9%
2026-08-10	3,057	0	3,969	77.0%
2026-08-07	1,245	0	1,914	65.1%
2026-08-06	634	0	784	80.8%
2026-08-05	220	0	761	28.9%
2026-08-04	658	0	2,322	28.3%
2026-08-03	111	0	1,839	6.0%
2026-07-31	4,527	0	8,031	56.4%
2026-07-30	756	0	1,164	65.0%
2026-07-29	1,221	0	2,116	57.7%
2026-07-28	1,424	240	3,631	39.2%
2026-07-27	230	0	1,391	16.5%
2026-07-24	1,647	0	3,070	53.7%
2026-07-23	1,561	0	1,996	78.2%
2026-07-22	192	0	851	22.6%
2026-07-21	1,798	0	2,974	60.5%
2026-07-20	1,024	0	1,747	58.6%
2026-07-17	1,317	0	2,263	58.2%
2026-07-16	1,429	200	3,271	43.7%
2026-07-15	681	0	1,526	44.6%
2026-07-14	515	0	2,249	22.9%
2026-07-13	1,843	0	3,354	55.0%
2026-07-10	2,028	0	9,815	20.7%
2026-07-09	5,725	0	9,095	62.9%
2026-07-08	4,092	0	8,572	47.7%
2026-07-07	4,725	0	7,626	62.0%
2026-07-06	2,664	0	4,626	57.6%
2026-07-02	2,380	0	4,808	49.5%
2026-07-01	2,533	0	4,480	56.5%
2026-06-30	389	0	1,958	19.9%
2026-06-29	519	0	1,339	38.8%
2026-06-26	1,760	0	4,702	37.4%

Showing 1–50 of 64 days