I bought IWM puts, March 79, yesterday.
Then the market launched upward. And by close the value of my puts were higher than when I bought them. Massive changes in option value are being seen in the market. For those holding option with stops, they are probably getting killed, stopped out.
Never seen it before, a massive indice move AGAINST the value of the put (in theory) and the value of the put goes up instead.
Hell, I'll take it, but there is something important here, more than just understanding your Greeks. The wizard behind the curtain is important and he machinations are starting to show in these actions.