Stupid execution on a great idea. I saw that QQQ had risen overnight and due to market generally trending down decided a put was in order. However, using TradeStation's Matrix (a DOM ladder) I got confused and entered a market limit order at a higher price. I get confused with puts because down is up. I need to practice entering orders correctly with the Matrix price ladder or else just enter them the old-fashioned way, i.e., Tim Sykes method. He actually fills out an order ticket.