Najarian Brothers See Unusual Options Activity In Tripadvisor And Gilead

On CNBC's "Fast Money Halftime Report", Jon Najarian said that options traders were buying weekly calls in Tripadvisor Inc TRIP. The calls expire on Friday and traders were buying the September 45 calls and the September 45.50 calls.

Pete Najarian noticed unusual activity in Gilead Sciences, Inc. GILD. Around 10,000 contracts of the September 82.50 calls were traded in the first half of the session on Thursday. Traders were also buying the October 85 calls very aggressively.