Bullish Signals

A trader bought 18,000 CMCSA Apr 55 Calls for $1.02 (7.2 times usual volume) with stock at $51.21
A trader bought 1,500 JIVE Apr 12.5 Calls for $0.85 (3.8 times usual volume) with stock at $11.24
A trader bought 1,500 HCA Feb 50 Calls for $1.50 (2.3 times usual volume) with stock at $48.67
A trader bought 17,000 AMD Feb 3 Calls for $1.13 (2.5 times usual volume) with stock at $4.07
A trader sold 1,047 OII Jan 75 Puts for $0.45 (8 times usual volume) with stock at $76.97