Jon Najarian Sees Unusual Options Activity In Pinterest and DR Horton

On CNBC's "Fast Money Halftime Report," Jon Najarian spoke about unusually high options activity in Pinterest Inc PINS.

The name was a frequent flyer on Najarian's unusual activity report and traders who bought calls ahead of news were wright. On Friday, they bought the October $34 calls aggressively. Najarian joined the trade and he is going to be in the position for a month or six weeks.

D. R. Horton Inc DHI was also active. Over 10,000 contracts of the January $80 calls were traded on Friday. He followed the trade and he is going to hold the position into the year end.