Finance

Put-Call Parity Calculator

Verify the put-call parity relationship and detect arbitrage opportunities.

Call Price ($)

Put Price ($)

Stock Price ($)

Strike Price ($)

Risk-Free Rate (%)

Time to Expiry (years)

Theoretical Call Price—

Theoretical Put Price—

Parity Difference—

Arbitrage?—

C + PV(K) = P + S
C = Call, P = Put, S = Stock, K = Strike
PV(K) = K × e^−rT

Understanding Put-Call Parity

Put-call parity states that for European options with the same strike and expiry: Call + PV(Strike) = Put + Stock. Any deviation creates a risk-free arbitrage opportunity.