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🔁 Calculators

Risk Reversal

Computes the net premium of a risk reversal: buying a higher-strike call and selling a lower-strike put, building a synthetic long position in the asset. Depending on the premium gap, the structure comes out as a debit (you pay) or a credit (you receive) — and when the two cancel, it becomes the classic zero-cost reversal. In FX, it also gauges the slope of the volatility smile. Enter the put and call strikes and the two premiums.

Resultado

Risk Reversal

Computes the net premium of a risk reversal: buying a higher-strike call and selling a lower-strike put, building a synthetic long position in the asset. Depending on the premium gap, the structure comes out as a debit (you pay) or a credit (you receive) — and when the two cancel, it becomes the classic zero-cost reversal. In FX, it also gauges the slope of the volatility smile. Enter the put and call strikes and the two premiums.

Going long without buying the stock

The risk reversal builds a position much like being long the asset, but with options only. You buy a call above the price and sell a put below, funding one leg with the other. The effect is directional and bullish: you gain if the asset rises, lose if it falls, almost as if you held the stock itself.

The number that matters is the net premium. If the call you buy costs more than the put you sell, it comes out as a debit; if it's the other way round, you receive a credit to set up the bullish bet. When the two balance, you get the famous zero-cost reversal. In the FX market, the risk reversal is quoted in volatility and works as a gauge of the volatility smile, showing whether the market pays more for upside or downside protection.

Enter the put and call strikes and the two premiums. The tool returns the net premium and indicates whether it's a debit or a credit. Remember that, because there's a sold put, the downside risk is real and considerable: below the put strike, losses grow like those of a long position.

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Garman-Kohlhagen FX Call Price

Prices an FX call option with the Garman-Kohlhagen model, the extension of Black-Scholes to the currency market. The foreign interest rate behaves like a continuous dividend on the base currency: the premium is S·e^(−rf·T)·N(d1) − K·e^(−rd·T)·N(d2). The spot term is discounted by the foreign rate and the strike by the domestic rate — swapping the two flips the result. It is used for hedging and speculation with currency options. Enter the spot rate, the strike, the domestic and foreign rates, the term in years and the volatility.

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No-Touch Option

Computes the price of a no-touch option: it pays a fixed amount if the asset does NOT touch a barrier before expiry, and nothing if it touches. It's the opposite bet to the one-touch — you win as long as the price behaves and stays away from the barrier. The two are complementary: the sum of a one-touch and a no-touch with the same barrier is always the discounted payout. Enter the spot price, the barrier, the rate, the volatility, the term and the payout.

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Quanto Option

Computes the price of a quanto call: an option on a foreign asset, but whose payoff is paid in domestic currency at a fixed exchange rate. This removes the FX risk for the investor but introduces a drift adjustment that depends on the correlation between the asset and the exchange rate. It's widely used by investors who want exposure to a foreign index without the currency risk. Enter the asset price, the strike, the two rates, the asset and FX volatilities, the correlation, the term and the fixed exchange rate.

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Garman-Kohlhagen FX Put Price

Prices an FX put option with the Garman-Kohlhagen model, the currency-market version of Black-Scholes. As with the call, the foreign interest rate enters as a continuous dividend on the base currency: the premium is K·e^(−rd·T)·N(−d2) − S·e^(−rf·T)·N(−d1). The strike term is discounted by the domestic rate and the spot term by the foreign one. It's used to hedge against a currency falling or to speculate in that direction. Enter the spot rate, the strike, the domestic and foreign rates, the term in years and the volatility.

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Synthetic Forward (Put-Call Parity)

Computes the synthetic forward price implied by the prices of a European call and put with the same strike and expiry, via put-call parity: F = (C − P)·e^(rT) + K. Instead of starting from the spot price and cost of carry, it extracts the forward directly from the options market, which is useful for checking arbitrage between the two markets. Enter the call and put premiums, the strike, the interest rate and the term.

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One-Touch Option

Computes the price of a one-touch option: it pays a fixed amount if the asset touches a barrier above the current price at any time before expiry, and nothing if it never touches. It's one of the most traded American binary options in the FX market, and its price is the risk-neutral probability of the price reaching the barrier, brought to present value. Enter the spot price, the barrier, the rate, the volatility, the term and the payout.

The results provided by this tool are for general informational and educational purposes only and do not constitute professional, financial, medical, legal, tax or accounting advice. Always confirm important decisions with a qualified professional and official sources.