NEW TRADE
Costco (COST): 530.34

TRADE ACTION: Sell the put spread for a credit of 0.90
STO the COST 21-JUL 517.50 put
BTO the COST 21 JUL 512.50 put

Enter GTC order in for 0.90 (you may not get filled today)

The Master Portfolio is trading 5 contracts