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Put-Call Parity Calculator

Call + PV(Strike) = Put + Spot — the arbitrage-free relationship.

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Frequently asked questions

What's the practical use?
Build synthetic positions. e.g. synthetic stock = long call + short put (same strike). Useful when direct stock is unavailable or costly.
Does parity hold for American options?
Only as inequality bounds. American puts can be worth more than European (early exercise value), breaking strict parity.
What causes parity violations?
Transaction costs, short-sale restrictions, borrow costs, dividends, tax differences. Small violations exist but are uneconomical to exploit.
Is PCP formula exact?
Yes for European options with no dividends. Add dividend PV adjustment: C + PV(K) = P + S - PV(Div).