Choose a spread, enter strikes & premiums (per share), lot size and contracts. "Instant P/L" is what you'll have immediately after placing the order. "Current P/L" uses the current market premiums you enter.
Spread inputs
Market (current) premiums — enter live prices to compute current P/L
Tip: Enter the premiums you would pay/receive when placing the order in the "Long Premium" and "Short Premium" fields. Enter live market prices in the "Current Long/Short Premium" fields.
Results
Explanation
Buy lower-strike call and sell higher-strike call (Bull Call Spread).