VRTXThe short sale volume percent (not short interest) for stock ticker VRTX is 21% on Oct 27, 2020. The short sale volume is 289,887. The total volume is 1,404,461. The short sale volume percent is up 1% compare to Oct 26, 2020.
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Insider Buying 
The Volume and short volume are limited. It is not including all volumes from all Market.
DateShort VolumeTotal VolumePercent
2020-10-27289,8871,404,46121%
2020-10-26222,8491,116,60320%
2020-10-23184,089850,79722%
2020-10-22189,5681,414,36013%
2020-10-21297,3471,243,82524%
2020-10-20497,2281,392,61636%
2020-10-19519,7241,691,54731%
2020-10-16879,1632,731,92032%
2020-10-152,714,48411,234,33424%
2020-10-14137,494325,34642%
Last 5 days short percent 19.63%
Last 10 days short percent 25.34%
Last 20 days short percent 28.08%
Last 50 days short percent 33.66%
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2020-10-27GILD1,480,6684,326,14634%
2020-10-27JNJ669,5482,063,83932%
2020-10-27MRK1,418,6065,448,16226%
2020-10-27XLV1,936,6623,391,05657%