A Bull Call debit spread is a long call options spread strategy where you expect the underlying security to increase in value. Within the same expiration, buy a call and sell a higher strike call. Risk is limited to the premium paid (the Max Loss column), which is the difference between what you paid for the long call and short call. Profit is limited to the difference in strike values minus the debit (premium paid). The bull call strategy succeeds if the underlying security price is above the higher or sold strike at expiration.