Curious about the quoted pricing for spread trades at OH. Their website says "$12.50 + 0.15/contract". If I trade 20 x iron condor (4 legged spread), would that count as 20 contracts or 80? What would my true all in cost be, including all the little extras such as exchange fees that are passed along? Figured I'd ask here since if I get a screwy answer it's more likely to be called out. Thanks.