Bullish signals

A trader bought 5,500 CWH Jan 30 Calls for $0.10 (3.2 times usual volume) with stock at $23.65
A trader bought 2,000 KMR Jan 75 Calls for $1.85 (13.4 times usual volume) with stock at $75.69
A trader bought 2,000 IBB Jan 220 Calls for $4.70 (3.1 times usual volume) with stock at $213.55
A trader bought 3,100 WTI Dec 20 Calls for $0.45 (12.8 times usual volume) with stock at $19.10