Call Credit Spread simulator
Structurally identical to the put credit spread, reflected. The long call above your short strike is the whole reason this has a maximum loss at all. Remove it and the risk is unbounded.
Course catalogue99 lessons
The spread
Payoff at expiration
Note where the line goes flat on the right. That floor is the long $110 call doing its job, without it the line keeps going.
Pick an outcome
+$150
Both legs expire worthless. You keep the full $150 credit. The best case, and the only one where nothing is settled.
The numbers
The long $110 call is the only reason this has a maximum loss. Sold naked, the short $105 call has no ceiling on what it can cost.
The theory behind it
This simulator models outcomes at expiration from the inputs you supply. It fetches no market data, and the prices you type are not quotes. Real results differ: assignment can happen early, spreads and commissions are charged on every leg, and a position rarely travels in a straight line to the outcome shown.