Take IBM trading at $154. 100 shares will cost you $7,700 on margin
Jan18 $100 Call @ $55.00 will cost you $5,500 outright
The whole idea behind the OP question was that you trade the SAME amount of money in both positions. Sure if you use different numbers you end up with a different conclusion. But if you invest the same amount in both position the % loss/gain tells you the full picture and the calls will make more money if right and lose more money if wrong.
Simple Math 101...
True, the timevalue adds a little and changes slightly the picture, but DITM calls have little time value anyway...
