Quote from atticus:
I'll leave it here, right here, in this post and promise never to mention him again. He stalks me on this board with this OI stuff and sends me dozens of PMs. He can't for the life of him accept that I don't assign any significance to it. His boundary got taken for 17 SPX with a week to go.
It takes no skill nor does it imply an edge to assign a range to an underlying. The probability YOU ASSIGN to those barriers is where the skill is involved. Any fool can trade a 1020/1150 double knockout on SPX; but you'll pay 80/100 for the privilege. The probability of success is 80%, so what does that prove?
IOW, if he had wagered on an SPY 104/110 DNT in the OTC market he would have lost the entire premium outlay, regardless of the debit paid/potential payout.