Benzinga's Volume Movers

surged 4.23 percent to $30.19. The volume of Qlik Technologies shares traded was 1749 percent higher than normal. Qlik Tech agreed to be acquired by Thoma Bravo in a $3 billion deal.

shares moved up 12.16 percent to $19.92. The volume of Ciena traded was 499 percent higher than normal. Ciena reported better-than-expected Q2 results.

shares climbed 6.15 percent to $36.05. The volume of Envestnet shares traded was 141 percent higher than normal. UBS upgraded Envestnet from Neutral to Buy.

shares rose 7.36 percent to $35.73. The volume of Donaldson shares traded was 123 percent higher than normal. Donaldson reported stronger-than-expected results for its third quarter.