BIIB	The short sale volume percent (not short interest) for stock ticker BIIB is 31% on Jan 19, 2021. The short sale volume is 152,264. The total volume is 487,823. The short sale volume percent is down -14% compare to Jan 15, 2021.

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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
2021-01-19	152,264	487,823	31%
2021-01-15	234,659	526,480	45%
2021-01-14	261,470	665,547	39%
2021-01-13	128,619	415,193	31%
2021-01-12	170,275	463,417	37%
2021-01-11	538,837	1,358,228	40%
2021-01-08	113,799	356,562	32%
2021-01-07	129,809	399,270	33%
2021-01-06	161,997	440,071	37%
2021-01-05	135,227	442,539	31%

Last 5 days short percent	37.03%
Last 10 days short percent	36.49%
Last 20 days short percent	36.37%
Last 50 days short percent	39.76%

Related Stock Ticker
Date	Ticker	Short Volume	Total Volume	Percent
2021-01-19	ABBV	2,561,196	3,956,374	65%
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2021-01-19	AMGN	509,552	879,101	58%
2021-01-19	BIO	26,740	52,119	51%
2021-01-19	GILD	3,556,975	10,168,867	35%
2021-01-19	JNJ	1,340,905	3,589,424	37%
2021-01-19	PFE	5,611,484	18,404,912	30%
2021-01-19	SGMO	263,481	779,591	34%
2021-01-19	SNY	714,096	1,258,290	57%
2021-01-19	XLV	1,810,900	3,072,707	59%