Watch These 5 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.

• Caterpillar Inc. CAT Jan17 77.5 Calls Sweep: 1022 @ ASK $4.45: 1066 traded vs 2466 OI: Earnings 7/28 $75.88 Ref
• Anacor Pharmaceuticals Inc ANAC Jan17 110 Calls: 500 @ Above Ask! $0.40: 509 traded vs 1860 OI: $99.22 Ref
• Ctrip.com International, Ltd. (ADR) CTRP Jun16 41.25 Calls Sweep: 577 @ ASK $1.75: 649 traded vs 1927 OI: Earnings 6/15 After Close $40.54 Ref
• Alnylam Pharmaceuticals, Inc. ALNY Jun16 65.0 Calls Sweep: 749 @ ASK $1.85: 813 traded vs 370 OI: $63.08 Ref
• WhiteWave Foods Co WWAV Oct16 50.0 Calls: 600 @ ASK $1.60: 601 traded vs 430 OI: $45.16 Ref