Took off the trade I bought about 1  ½ hours ago for $11.90 Debit for a credit of $12.40. Why was I able to do this? SPX dropped from our short strike of  $2590 to $2585, and we were short about 4.3 Deltas for every 1-2-1 Butterfly at trade initiation.  Dan Sheridan dan@sheridanmentoring.com