"So, wild guess: when you assign an option, the price may change between assignment and delivery."
So close, but from there, you look like someone swinging at a Mariana Rivera cut-fastball.
All the use your gains.. blah, blah, blah, forget. Meaningless.
Try this - always best to work things out for yourself.
You like your expry graphs.
Enter a long deep in the money call spread 100 times, with 3 weeks to expry (that was the time the OP stated). Use a low vol and make certain that both strikes have no extrinsic value in the opposing put.
Now run your graph.
Now, all proud of yourself that somewhere you learned when to efficiently exercise your call to benefit yourself to the 3rd decimal, exercise it and enter the transaction, (removing the long call and replacing it with stock).
Now look at your graph.
You'll have your answer. Which you were quite close to, until you went off the rails.
To beat the poor 'ol dead horse... Do it one more time. This time, the moment you exercise the call, buy in the corresponding put for cabinet.
...and before anyone corrects me on exercising calls for equity options, the example was for illustrative purposes, and I never liked equity options anyway. The equities options exchanges were for pussies.
So close, but from there, you look like someone swinging at a Mariana Rivera cut-fastball.
All the use your gains.. blah, blah, blah, forget. Meaningless.
Try this - always best to work things out for yourself.
You like your expry graphs.
Enter a long deep in the money call spread 100 times, with 3 weeks to expry (that was the time the OP stated). Use a low vol and make certain that both strikes have no extrinsic value in the opposing put.
Now run your graph.
Now, all proud of yourself that somewhere you learned when to efficiently exercise your call to benefit yourself to the 3rd decimal, exercise it and enter the transaction, (removing the long call and replacing it with stock).
Now look at your graph.
You'll have your answer. Which you were quite close to, until you went off the rails.
To beat the poor 'ol dead horse... Do it one more time. This time, the moment you exercise the call, buy in the corresponding put for cabinet.
...and before anyone corrects me on exercising calls for equity options, the example was for illustrative purposes, and I never liked equity options anyway. The equities options exchanges were for pussies.
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I think we're back to the "exercised at X, delivered at Y" scenario, which must be the part I got right.
Every time I see it I want to
. Until someone says, 'sell a credit spread,' and then I want to
, and 