Bearish Signals

A trader bought 1,500 BONT Jul 11 Puts for $0.75 (18.3 times usual volume) with stock at $16.77
A trader bought 3,000 MAT Feb 44 Puts for $0.80 (5.6 times usual volume) with stock at $46.24
A trader bought 2,350 ECA Apr 17 Puts for $0.65 (3.2 times usual volume) with stock at $17.63
A trader bought 1,400 EMN Feb 70 Puts for $0.45 (3.3 times usual volume) with stock at $79.89