Options
Options Profit / Loss Calculator
Estimate P&L for a long or short call or put at a chosen underlying price.
How the calculation works
Intrinsic value is max(0, spot − strike) for calls and max(0, strike − spot) for puts. Long P&L per share is intrinsic minus premium; short flips the sign. Multiply by contracts × multiplier and subtract commissions for net dollars. Max loss for a naked short call is treated as unlimited.
Formula & example
Intrinsic = max(0, ±(spot − strike)); long P&L/share = intrinsic − premium; net $ = P&L/share × multiplier × contracts − fees
Long 1 call, strike $100, premium $2.50, exit spot $105 → intrinsic $5, P&L/share $2.50, net ≈ $250 before fees.
Why use this calculator
Premium, multiplier, and direction make mental math error-prone. This keeps long/short and call/put payoff conventions consistent.
When to use it
Use when you have a planned exit price (or scenario spot) and need dollar P&L for a single-leg option before placing or managing the trade.
Tips for accurate results
- Naked short calls have theoretically unlimited loss — size from risk, not premium collected.
- Include commissions if they matter relative to premium.
FAQ
Does this include time decay before expiry?
No. It marks the option to intrinsic at your exit spot only. Before expiry, market price can differ from intrinsic.
What does Unlimited mean?
For a short call (or long call max profit), payoff is uncapped in the simple European-style model used here.
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