Watch These 4 Huge Call Purchases In Monday Trade

Benzinga's newsdesk monitors options activity to notice unusual patterns. These large volume (and often out of the money) trades were initially published intraday in Benzinga Professional . These trades were placed during Friday's regular session.

• First Solar, Inc. FSLR Sep 1 $50 Calls Sweep (40) at the Bid: 915 @ $2.303 vs 23 OI; Ref=$49.1699
• Under Armour Inc UA Aug 4 $18.5 Calls Sweep (12) at the Ask: 964 @ $0.55 vs 246 OI; Ref=$17.425
• Amazon.com, Inc. AMZN Nov 17 $1040 Calls Sweep (4) at the Ask: 515 @ $44.0 vs 140 OI; Ref=$1009.77 Signals 10:51:31am
• Tetraphase Pharmaceuticals Inc TTPH Nov 17 $7.5 Calls Sweep (2) at the Ask: 1000 @ $0.7 vs 913 OI; Ref=$6.4