15. Red Hat (RHT)
Percent Change: 72.3%
January Open: $69.70
December Close: $120.10
Price Increase: $50.40
14. Intuitive Surgical (ISRG)
Percent Change: 72.6%
January Open: $211.39
December Close: $364.94
Price Increase: $153.55
13. Lam Research Corporation (LRCX)
Percent Change: 74.1%
January Open: $105.73
December Close: $184.07
Price Increase: $78.34
12. Activision Blizzard (ATVI)
Percent Change: 75.4%
January Open: $36.11
December Close: $63.32
Price Increase: $27.21
11. Centene (CNC)
Percent Change: 78.5%
January Open: $56.51
December Close: $100.88
Price Increase: $44.37