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In Short Call Spreads, why sell an A call, and buy a B call? If $A < p < B$, you can be assigned to your A call, while your B call is worthless. Kevin Ott diagrams this below, but I added A, B.

Instead, why not buy an A call, and sell a B call? Then if $A < p < B$, you can't be assigned, and your A call is ITM. So you profit more!

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  • $\begingroup$ This question is redundant since the other question posed is the synthetic equivalent to this one. $\endgroup$ – Bob Baerker Aug 22 at 14:43
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Instead, why not buy an A call, and sell a B call?

That is a different strategy, a bull/debit call spread, equivalent to a bull/credit put spread, which is shown in your other question. If you are comparing the value of the position for a given $p$, you must take into account that a debit spread costs cash up front, whereas a credit spread pays cash up front. The profit/loss plot includes this cash component. You cannot compare the value of the options alone.

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