Carry Trade

A carry trade borrows in a low-interest-rate currency and invests in a higher-yielding one, earning the difference unless exchange rates move against it.

A carry trade borrows where money is cheap and invests where it pays more. In currencies that means being short a low-interest-rate currency and long a higher-yielding one. The interest gap is earned slowly, but an exchange rate move can wipe it out quickly.

Category
Trading Strategies
Reading time
3 min
Also called
Currency carry trade, FX carry trade, Interest rate carry
Updated

The carry trade in plain words

A carry trade borrows something cheap to hold and invests in something similar that pays more, earning the difference.1

Research published by NBER documents that carry traders are subject to crash risk.2

Research shows moves between high- and low-yielding currencies are lopsided: steady small gains punctuated by sudden sharp losses.2

How a carry trade is built

  1. Compare rates

    Find two currencies with a wide Interest Rate gap.

  2. Check policy

    Watch each Central Bank for signs of rate changes.

  3. Go long the higher yielder

    Buy the higher-rate currency against the lower-rate one.

  4. Size carefully

    Limit Leverage so a sharp move does not wipe out the account.

  5. Plan the exit

    Watch for unwinds, which tend to hit when risk appetite and funding dry up.2

  6. Check the rules

    Leverage limits and overnight financing rules differ by country and broker.

Worked examples

Example 1 — Steady carry

Carry earned

A hypothetical trader earns a 4% yearly rate gap while the exchange rate stays flat.

Example 1 — Steady carry — calculation
Interest gap+4% a year
Currency move0%

With a stable exchange rate, the trade earns the differential as intended.1

Example 2 — Sudden unwind

Crash

A hypothetical high-yield currency falls 10% in a week as markets turn risk-averse.

Example 2 — Sudden unwind — calculation
Interest earned+1%
Currency move−10%

Carry traders are subject to crash risk, and one move erased many months of carry.2

Example 3 — Leverage cut

Damage limited

A hypothetical trader halves leverage after volatility rises.

Example 3 — Leverage cut — calculation
Leverage10:1 → 5:1
Drawdown in the dropSmaller

The unwind came as risk appetite and funding shrank, and the lower leverage kept the damage manageable.2

Carry trade vs directional trading

AspectCarry tradeDirectional trading
Main returnInterest rate gapPrice movement
Holding periodWeeks to monthsAny
Main riskSudden currency crashesWrong direction
Return profileSmall steady gains, rare big lossesVaries with each trade

Where carry trades appear

Advantages and disadvantages

Advantages

  • Earns income while waiting.
  • Clear logic based on rate gaps.
  • Can work for long periods in calm markets.
  • Easy to monitor rate changes.

Disadvantages

  • Rare but sharp crashes.
  • Usually needs leverage.
  • Rate gaps can close quickly.
  • Many traders crowd the same trades.

Going deeper

Read as far as you need. Each level builds on the one before it.

What it is

Beginner

The idea is to fund cheaply and invest at a higher rate, pocketing the gap for as long as it lasts.1

Crash risk

Intermediate

Returns are negatively skewed: most of the time the trade earns, but its rare losses are large.2

Why crashes happen

Advanced

Those losses come from crowded positions unwinding at once, typically when risk appetite and funding liquidity fall.2

Common mistakes

  1. Too much leverage

    One sharp move can wipe out months of carry.

  2. Ignoring rate changes

    A rate cut can end the trade.

  3. Crowded positions

    Everyone exits at once.

  4. No stop plan

    Carry losses can be fast.

Check your understanding

Test yourself before moving on. Each answer comes with an explanation.

Q1What does a carry trade earn?
Q2What risk does NBER research document?

Key points to remember

  1. A carry trade borrows low and invests high.
  2. It earns the interest rate gap.
  3. Exchange rate moves can wipe out the gain.
  4. Carry returns are negatively skewed.
  5. Leverage rules differ by country.

Frequently asked questions

Is carry trading only for currencies?

No, but currencies are the classic example.

Why do carry trades crash?

They are often unwound together when risk appetite and funding fall.

Do I earn interest on every broker?

Overnight financing differs by broker and country, so check the terms.

Further learning

Sources

This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.

  1. U.S. Commodity Futures Trading Commission. CFTC Glossary (opens in a new tab) Checked .
  2. NBER. Carry Trades and Currency Crashes (Working Paper 14473) (opens in a new tab) Checked .

Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.