Fast Money Picks For December 15

, Tim Seymour suggested a short position in

. He thinks that the U.S. dollar strength is going to return next week. Dan Nathan is a seller of

. He is expecting a tough quarter in Q1 when the retail companies are announcing guidance for the first half of the year. Nathan is long puts options in the ETF. Brian Kelly recommended a purchase of Bitcoin because

started to accept it. Pete Najarian believes that

is going higher because of unusual activity in the name.