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Carry Trade Calculator

Calculate forex carry trade profits, interest rate differentials, exchange rate movements, and net returns.

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Understanding Forex Carry Trade Strategies

A carry trade is a popular financial strategy in foreign exchange (forex) markets where an investor borrows capital in a low-interest-rate currency (the funding currency) and uses those funds to purchase or deposit assets in a high-interest-rate currency (the target currency).

How Carry Trade Profit is Calculated

The total return of a carry trade consists of two key components: the net interest rate spread (carry yield) and the capital gain or loss resulting from fluctuations in the spot exchange rate.

Mathematical Formula for Carry Trade Profit

Net interest income $I_{\text{net}}$ over holding time $t$ (in years) for principal $P$:

$$I_{\text{net}} = P \times (r_{\text{target}} - r_{\text{funding}}) \times t$$

Exchange rate impact $\Delta FX$:

$$\Delta FX = P \times \left( \frac{E_{\text{settle}} - E_{\text{initial}}}{E_{\text{initial}}} \right)$$

Total profit $R_{\text{total}} = I_{\text{net}} + \Delta FX$.

Frequently Asked Questions

What is funding currency in a carry trade?

The funding currency is the currency with low interest rates that an investor borrows. Examples historically include the Japanese Yen (JPY) and Swiss Franc (CHF).

What is the biggest risk in a carry trade?

Exchange rate volatility (currency risk) is the primary risk. If the target currency depreciates significantly against the funding currency, exchange losses can easily erase interest rate gains.

How does leverage affect a carry trade?

Forex brokers allow high leverage, which multiplies both potential interest gains and exchange rate losses.

What is covered vs uncovered interest rate parity?

Uncovered interest parity suggests exchange rates should adjust to eliminate carry trade profits over time, while covered interest parity uses forward contracts to hedge currency movement.