Unusual Options Activity

A trader bought 19,000 POT  Feb 33 Calls for $0.59 (3.8 times usual volume) with stock at $32.31
A trader bought 6,000 DANG Mar 11 Calls for $0.575 (5.7 times usual volume) with stock at $9.14
A trader bought 1,992 GLUU Jan 3 Calls for $1.20 (5.1 times usual volume) with stock at $4.14
A trader bought 10,000 ELNK Jul 6 Calls for $0.70 (14.8 times usual volume) with stock at $5.29
A trader bought 7,000 HA Feb 10 Calls for $0.70 (11.1 times usual volume) with stock at $10.21