These 10 stocks traded with exceptionally high volume yesterday: Stocks in play?

 Here are the 10 stocks with largest volume vs. last year's average volume. They all traded 7.5 to 37.4 times more shares yesterday than normally traded in a day.

​Are these stocks in play?  High volume could also mean changes in positions of institutional and high net work individuals.

   1 CSII   Cardiovascular Systems Inc.                        3739.9%
   2 GMED   Globus Medical Inc                                 2144.5%
   3 LIFE   Atyr Pharma Inc                                    1524.8%
   4 NUVA   Nuvasive Inc                                       1376.1%
   5 EIGR   Eiger BioPharmaceuticals Inc                       1289.7%
   6 SUMO   Sumo Logic Inc                                     1113.7%
   7 BLBD   Blue Bird Corp                                     1100.0%
   8 AI     C3.ai Inc                                          849.4%
   9 IFF    International Flavors & Fragrances Inc.            784.9%
  10 AZTA   Azenta Inc                                         783.4%