Skechers shares are off 70c to $21.70 notable put trade of a purchase of 5,800 of the Jan. $20 puts at the 80c asking price. The prior open interest in the strike was just 686 contracts and this trade represents 15x the average daily volume for the options in this name. Shares of the footwear maker have skidded some 18% in the past month after hitting a 52-week high of $25.30 and are now threatening to break support at here at the $22 level.