What I'm saying is, if I expected a dollar, I netted 67¢, AND continued that margin exposure for another expiry, at least.
SPX or ES? At this point, it's immaterial. (Hmmmm. "But in general..." But in general, it's in the SPX, which means I had a very busy Friday. (Or was it Thursday? Dunno.)
2397 didn't materialize? No. Not in this time/space tuple.
Take a loss and turn it around (to be) alchemy? Nah. Just rolling some instruments. No matter what, it's accepting one position, re-covering that margin capital, and then re-deploying that margin capital in some other, hopefully theta-rich, environment. It's still, as Kansas used to sing it, your Assssss in the Winnnnnnnd.
BUT, you do have the opportunity to split things up. If you take a |0.40| short delta position, and split it up, you can monitor nicely both your relative risk and your revenue-neutrality {of the roll}, but aiming your summed *new* short deltas to be about what the old one was. Thus, if you take two new positions (on top at 0.25, and on bottom at ~-0.20), you can expect about the same in new received premium as what was paid out to buy out the 0.40.
But ANY new spread is a new hanging of your ass in the wind.