How to Trade Stock Substitution in SPX or Spy

Thursday was a decently active day for options. We're seeing some paper rumble through not quite the explosive post fed days we've seen in the past, 1.4 million contracts. The big dog on Thursday were 81,000 of the July 21s followed by two 39,00 of the July 20s and number three, 35,000 ofthe July 25s. You can make your voice heard in these types of polls. And guess what? You guys are not the only one looking at these.