Carry Trade
Quick Answer
A carry trade is a strategy that seeks to benefit from differences in interest rates or returns between currencies. It typically involves borrowing or funding a position in a relatively low-yielding currency and investing in a higher-yielding currency or asset. Any potential carry can be offset or exceeded by adverse exchange-rate movements.
How does a Carry Trade work?
A currency carry trade generally involves two sides:
Funding currency — a currency with a relatively low financing or interest rate.
Target currency — a currency associated with a relatively higher return.
The trader effectively funds the position using the lower-yielding currency and gains exposure to the higher-yielding currency or asset.
The difference between the two rates can create the potential carry.
For example:
Funding rate: 1%
Target rate: 5%
Simplified interest-rate differential:
5% − 1% = 4%
If exchange rates remain sufficiently stable, that differential may contribute positively to the position.
However, the strategy introduces currency risk. If the higher-yielding currency falls substantially against the funding currency, the exchange-rate loss can exceed the interest-rate advantage. The IMF specifically notes that currency moves can be much larger than the single-digit annual carry available from many interest-rate differentials.
Key features of a Carry Trade
Several characteristics are important:
Interest-rate differential: The strategy generally seeks to benefit from the gap between lower and higher funding returns.
Funding currency: The low-yielding currency is used to finance the position.
Target currency: The position gains exposure to a higher-yielding currency or asset.
Exchange-rate exposure: Profitability depends on more than the rate differential because currency prices can move.
Often leveraged: BIS describes many carry trades as leveraged cross-currency positions.
Sensitive to volatility: Carry trades tend to be more vulnerable when currency volatility rises.
Can unwind rapidly: When sentiment or monetary-policy expectations change, traders may close similar positions at the same time.
The Japanese yen has historically been used as a funding currency during periods when Japanese interest rates were relatively low compared with rates elsewhere, but no currency is permanently a funding currency.
Simple Carry Trade example
Suppose a trader can hypothetically fund a position in Currency A at:
2% per year
and obtain exposure to an asset denominated in Currency B yielding:
6% per year
The simplified rate differential is:
6% − 2% = 4%
Assume the trader has equivalent exposure of:
$100,000
Ignoring compounding, transaction costs and exchange-rate changes:
Potential annual carry = $100,000 × 4% = $4,000
Now suppose Currency B falls by:
7%
against Currency A during the same period.
Simplified currency loss:
$100,000 × 7% = $7,000
Even though the position generated approximately $4,000 in positive carry, the $7,000 adverse currency move would more than offset it.
Simplified net effect:
$4,000 − $7,000 = −$3,000
This example is illustrative only and does not represent FxGrow financing rates, swaps, instruments or expected returns.
Potential benefits and uses
Carry trades may be used when market participants expect an interest-rate differential to persist while exchange rates remain sufficiently stable.
Potential uses include:
seeking return from interest-rate differentials;
expressing a view on relative monetary policy;
gaining exposure to higher-yielding currencies;
incorporating financing conditions into currency analysis;
analysing capital flows between economies.
The IMF notes that persistent interest-rate differences can be an important driver of carry-trade flows, although expectations about exchange rates, growth and returns can also influence activity.
Carry trades can therefore connect monetary policy, interest rates, currency markets and investor risk appetite.
Risks, limitations and common misconceptions
A common misconception is that a positive interest-rate differential guarantees a profitable carry trade.
It does not.
The main risks include:
Exchange-rate risk: The target currency can depreciate against the funding currency.
Interest-rate risk: Central banks can change policy, reducing or reversing the rate differential.
Leverage risk: Borrowed exposure can magnify losses.
Volatility risk: Sharp market moves can make carry trades less attractive or force positions to close.
Liquidity risk: Crowded positions may become difficult or expensive to unwind during market stress.
BIS research highlights that leveraged carry positions can become particularly sensitive to changes in exchange rates, interest rates and volatility.
Another misconception is that carry trade means simply buying the currency with the highest interest rate. The strategy is relative: the expected return must be considered against the cost of the funding currency and possible exchange-rate changes.
Carry trades can also become crowded. If many participants hold similar positions and conditions suddenly change, simultaneous unwinding can contribute to sharp currency movements. This dynamic has been discussed by both the Bank of England and BIS.