Watch These 5 Huge Call Purchases In Wednesday 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 Tuesday's regular session.

• Heron Therapeutics Inc HRTX Sep 15 $17.5 Calls at the Bid: 3000 @ $1.0 vs 118 OI; Ref=$16.325
• Urban Outfitters, Inc. URBN Aug 18 $20 Calls Above Ask!: 1683 @ $0.901 vs 709 OI; Ref=$19.185
• NanoString Technologies Inc NSTG Jan 19 $20 Calls at the Ask: 1000 @ $0.85 vs 0 OI; Ref=$15.44
• Tripadvisor Inc TRIP Fri $42 Calls Sweep (37) at the Ask: 1000 @ $1.201 vs 198 OI; Ref=$39.54
• Ambarella Inc AMBA Sep 1 $56 Calls at the Ask: 599 @ $0.75 vs 15 OI; Ref=$52.18