scale in short #sp500

Exec Time	Spread	Side	Qty	Pos Effect	Symbol	Exp	Strike	Type	Price	Net Price	Order Type
10/2/2017 13:51	SINGLE	SELL	-1	TO OPEN	/ESZ7 1/50 NOV 17 (Wk3)	/EW3X7	2585	CALL	4.35	4.35	LMT