OSUR	The short sale volume percent (not short interest) for stock ticker OSUR is 70% on Jan 21, 2026. The short sale volume is 215,549. The total volume is 305,958. The short sale volume percent is up 32% compare to Jan 20, 2026.

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Insider Buying

The Volume and short volume are limited. It is not including all volumes from all Market.
Date	Short Volume	Total Volume	Percent
2026-01-21	215,549	305,958	70%
2026-01-20	29,039	77,164	38%
2026-01-16	46,956	64,882	72%
2026-01-15	79,341	271,047	29%
2026-01-14	66,133	121,815	54%
2026-01-13	37,869	158,284	24%
2026-01-12	67,368	271,608	25%
2026-01-09	42,044	76,496	55%
2026-01-08	135,878	348,886	39%
2026-01-07	123,696	268,840	46%

Last 5 days short percent	51.97%
Last 10 days short percent	42.95%
Last 20 days short percent	42.53%
Last 50 days short percent	38.43%

Related Stock Ticker
Date	Ticker	Short Volume	Total Volume	Percent
2026-01-21	COO	283,300	452,741	63%
2026-01-21	DGX	233,030	356,544	65%
2026-01-21	QDEL	893,613	1,095,041	82%
2026-01-21	TRIB	84,740	166,389	51%
2026-01-21	XLV	2,420,462	3,532,036	69%