Earning While You Hold: A Practical Guide to Carry Trade Strategies for US Forex Traders

In most financial markets, making money requires prices to move in your favor. Carry trading introduces a different dimension: the possibility of earning income simply by holding a position, regardless of whether the underlying exchange rate shifts. For US forex traders willing to invest the time to understand the mechanics, carry trades represent one of the most structurally sound income strategies available in currency markets — provided they are executed with clear eyes about the risks involved.

What Is a Carry Trade, Exactly?

At its core, a carry trade exploits the interest rate differential between two currencies. Every currency in the forex market carries an associated interest rate set by its central bank. When you hold a long position in a currency pair overnight, your broker credits or debits your account based on the rate difference between the two currencies in that pair.

If you are long on a currency with a higher interest rate and short on one with a lower rate, you receive a daily rollover payment — commonly referred to as a "positive swap" or "positive carry." The trade earns money simply by existing.

The classic example: borrowing in Japanese yen, where the Bank of Japan has maintained near-zero rates for decades, and investing in a higher-yielding currency such as the Australian dollar, New Zealand dollar, or — in certain periods — the US dollar itself. The spread between what you pay on the yen borrowing and what you earn on the higher-yield currency constitutes your carry income.

Step-by-Step: Building a Carry Trade Position

Step 1: Identify the Interest Rate Differential Begin by comparing central bank benchmark rates. The wider the gap between two currencies, the greater the potential carry income. As of 2025, pairs involving the Japanese yen (JPY) or Swiss franc (CHF) as the funding currency — given their persistently low rates — against higher-yielding currencies such as the Mexican peso (MXN), South African rand (ZAR), or the US dollar (USD) offer meaningful differentials.

Most forex brokers, including those accessible to US traders, publish daily swap rates for each currency pair. Review these before entering any position intended to capture carry income.

Step 2: Assess the Macro Environment Carry trades perform best in low-volatility, risk-on environments where investors are comfortable reaching for yield. When global growth is stable and financial conditions are calm, capital flows toward higher-yielding assets — reinforcing both the income and the capital appreciation side of the trade.

Conversely, carry trades are brutally punished during risk-off episodes. When uncertainty spikes — as it did during the 2008 financial crisis, the 2015 yuan devaluation shock, and the COVID-19 market crash in March 2020 — investors unwind carry positions en masse, often causing sharp, rapid reversals that can eliminate months of accumulated carry income in a matter of days.

Step 3: Select Your Pair and Size Your Position Choose a pair where the interest rate differential justifies the carry, the technical setup is not working directly against your position, and the macro backdrop supports risk appetite. Size conservatively — experienced carry traders rarely commit more than 1 to 2 percent of their account to any single carry position, precisely because of the reversal risk.

Step 4: Set Your Risk Parameters Establish a stop-loss that accounts for normal volatility in the pair without being so tight that routine fluctuations trigger an exit. A common approach is to place stops at significant technical levels — major support zones or recent swing lows — rather than arbitrary pip distances.

High-Yield vs. Stable Currency Pairs: A Comparison

Not all carry trades are created equal. The choice between high-yield and more stable pairs involves a fundamental tradeoff between income potential and volatility exposure.

High-Yield Pairs (e.g., USD/ZAR, USD/TRY, AUD/JPY in certain cycles) offer the largest interest rate differentials, sometimes exceeding 10 percentage points annualized. The carry income is substantial — but so is the price volatility. These pairs are subject to significant swings driven by commodity prices, political developments, and shifts in global risk sentiment. They are best suited to traders who actively monitor positions and have clear exit strategies.

Moderate-Yield, Lower-Volatility Pairs (e.g., AUD/JPY, NZD/JPY during stable periods) offer a middle ground. The differential is meaningful, the underlying currencies are liquid and well-regulated, and price behavior is more predictable than in frontier EM pairs. These have historically been the workhorses of institutional carry strategies.

Lower-Yield, High-Stability Pairs offer minimal carry income but function more as a hedging tool or a way to reduce the cost of holding other positions. USD/CHF or EUR/USD in certain rate environments fall into this category.

Historical Examples Worth Studying

The AUD/JPY carry trade of the mid-2000s is perhaps the most instructive case study for American traders. Between 2003 and mid-2007, with the Bank of Japan holding rates near zero and the Reserve Bank of Australia maintaining rates above 6 percent, traders collected substantial daily carry while the pair also appreciated significantly — a dual tailwind that produced exceptional total returns.

Then came 2008. As the global financial crisis intensified, risk appetite collapsed. Carry traders rushed to unwind positions, selling AUD and buying back JPY. The pair fell from above 100 to below 55 in a matter of months — a devastating reversal that wiped out years of accumulated carry income for those who had not managed their downside.

The lesson is not that carry trading is inherently dangerous. It is that carry trading without a risk management framework is.

Liquidity Risk: The Carry Trader's Hidden Adversary

Beyond market volatility, liquidity risk deserves specific attention. In normal market conditions, major carry pairs trade with tight spreads and deep order books. During periods of stress, however, liquidity can evaporate rapidly. Spreads widen dramatically, slippage increases, and stop-loss orders may be filled at prices significantly worse than intended.

This is particularly acute in emerging market carry pairs. The ZAR, TRY, and BRL can experience spread expansions of 5 to 10 times their normal levels during risk-off events. Traders who built positions assuming they could exit cleanly at a defined price may find the reality considerably messier.

To mitigate liquidity risk, carry traders should avoid concentrating positions in illiquid pairs, maintain sufficient margin buffers to withstand adverse moves without forced liquidation, and be especially vigilant around major risk events — central bank decisions, geopolitical developments, and US economic data releases.

Building a Sustainable Carry Strategy

The most durable carry traders approach the strategy not as a passive income machine but as an active, macro-informed practice. They monitor central bank policy shifts closely, because a narrowing interest rate differential can erode the economic rationale for a position even before price action confirms the change. They diversify across multiple carry pairs rather than concentrating in a single trade. And they treat carry income as a component of total return, not a substitute for sound technical and fundamental analysis.

At EA FX Markets, we view carry trading as one of the most intellectually honest strategies available to currency traders — it is grounded in observable economic fundamentals, offers a clear income rationale, and rewards disciplined practitioners. Approach it with rigor, respect its risks, and it can become a meaningful pillar of your broader forex trading framework.