Carry Trade: How It Works, Risks & Real-World Examples
How Carry Trades Work
The mechanics are straightforward. You borrow Japanese yen at near-zero rates, convert it to Australian dollars paying 4%, and earn the 4% spread (minus transaction costs). As long as the AUD/JPY exchange rate stays stable or moves in your favor, you profit.
Institutional investors execute this with massive leverage. A hedge fund might borrow $500 million equivalent in yen, convert it to higher-yielding assets — not just currencies, but bonds, equities, or even emerging market debt — and earn the spread multiplied by their leverage ratio.
The Math Behind the Carry
If the funding currency (e.g., JPY) is at 0.1% and the target currency (e.g., AUD) yields 4.35%, your gross carry is 4.25%. With 10x leverage, that becomes a 42.5% annualized return — before currency moves. But a 5% adverse move in AUD/JPY would wipe out the carry and then some.
Classic Carry Trade Pairs
| Funding Currency | Target Currency | Why It Works |
|---|---|---|
| JPY (Japan) | AUD, NZD, USD | Bank of Japan kept rates near zero for decades |
| CHF (Switzerland) | EUR, GBP | Swiss National Bank maintained negative rates until 2022 |
| EUR (Eurozone) | BRL, MXN, ZAR | ECB rates were negative 2014–2022; EM rates stay elevated |
| USD (current) | Varies | Post-2024 rate cuts made USD cheaper to borrow |
Why Carry Trades Unwind
Carry trades are often described as “picking up pennies in front of a steamroller.” The steady income lulls traders into complacency — until a shock triggers a violent reversal. When risk appetite drops, everyone rushes to close their positions at once.
Here’s the chain reaction: traders sell the high-yielding currency → the funding currency surges → leveraged positions hit margin calls → forced liquidation accelerates the move → volatility spikes → more stops get triggered. The JPY carry trade unwind of August 2024 saw USD/JPY drop over 10% in weeks.
Carry Trade vs. Other Forex Strategies
| Feature | Carry Trade | Momentum / Trend Following |
|---|---|---|
| Profit source | Interest rate differential | Price trend continuation |
| Holding period | Weeks to months | Days to weeks |
| Risk profile | Small steady gains, large sudden losses | Frequent small losses, occasional large gains |
| Best environment | Low volatility, stable rates | Trending markets, directional moves |
| Key risk | Currency depreciation, unwind events | Choppy, range-bound markets |
Key Takeaways
- Carry trades profit from borrowing low-rate currencies and investing in higher-rate ones.
- The strategy works best in calm, low-volatility environments with stable rate differentials.
- Leverage amplifies both the carry income and the currency risk.
- Carry trade unwinds are violent — funding currencies can surge 5–10% in days.
- The JPY and CHF are the most common funding currencies due to historically low rates.
Frequently Asked Questions
Can individual traders do carry trades?
Yes, but it’s harder to execute efficiently. Retail forex brokers charge swap rates (rollover fees) that eat into the carry. You also face wider spreads and less favorable financing terms than institutional traders. The strategy works better with larger position sizes where the carry income meaningfully compounds.
What triggers a carry trade unwind?
Anything that raises risk aversion: a financial crisis, unexpected central bank rate hikes in the funding currency, geopolitical shocks, or sharp equity selloffs. The 2008 financial crisis, the 2020 COVID crash, and the 2024 JPY unwind all triggered massive carry trade reversals.
Is the carry trade profitable long-term?
Historically, yes — but with painful drawdowns. Academic research shows carry strategies have generated positive returns over multi-decade horizons, but they exhibit negative skew: most months are modestly profitable, but the bad months can be devastating. Risk management is everything.
How does carry trade affect exchange rates?
Large-scale carry trades push the funding currency lower (selling pressure from borrowers) and the target currency higher (buying pressure from investors). This can keep currencies away from their fundamental value for extended periods, creating potential for sharp corrections when the trade reverses.
What is a negative carry trade?
A negative carry trade is when you intentionally accept negative carry (paying more to borrow than you earn) because you expect the currency move to more than compensate. For example, going long JPY against a high-yielder because you expect a risk-off event. It’s a directional bet, not a yield strategy.