The Carry Trade Explained: How It Works, Why It Unwinds, and What 2026 Teaches

Macro Guide, 2026

By Ken Chigbo, Founder, KenMacro, UK macro desk.

Find Ken on X @realkenchigbo · YouTube @Realkenchigbo · MACRO MASTERY Discord

Updated 2026-05-30

How a carry trade actually works

Start with the mechanic. If a trader can borrow Japanese yen at, say, half a percent and lend the proceeds in US dollars at five percent, the spread, in this example four and a half percent a year, accrues to them as long as the exchange rate does not move against them by more than the carry. In FX, this is most often expressed by going long a high-yielding currency against a low-yielding one in the spot market, where the broker pays you the interest-rate differential each day in the form of positive rollover or swap. The most-watched examples have been long AUD/JPY, long NZD/JPY, long MXN/JPY and, in the post-2022 hiking cycle, long USD/JPY. It is not exclusive to FX, the same principle drives bond carry, where you borrow short and lend long, and credit carry, where you borrow at a safe rate and lend at a risky one. For a clear academic primer see the BIS Quarterly Review on currency carry trades.

Why it is one of the largest trades in macro

Three forces have made the carry trade an enormous, persistent presence in global markets. First, the search for yield: in a world where developed-market rates spent most of the 2010s near zero, any reliable positive carry attracted enormous capital, from Japanese life insurers buying foreign bonds to hedge funds running leveraged FX trades. Second, the historical empirical record: over long periods the high-yielders have on average not depreciated by enough to wipe out the carry, which is the well-documented failure of the textbook uncovered interest parity, so the trade has paid more often than not. Third, the trade compounds beautifully when it works, with steady positive daily returns from swap or rollover even when the exchange rate is sideways, which makes the equity curve look smooth and tempts more capital in. The combined position size across the industry is genuinely huge, and the size itself is part of the risk: when the trade unwinds, the positions exiting are far larger than normal market flow can absorb cleanly, which is how you get the violent moves.

Why and how carry trades unwind

Carry trades unwind for two reasons. The first is the rate gap narrowing, which happens when the funding-currency central bank surprises hawkish, hiking rates or signalling it will, or when the high-yielding central bank starts cutting. Either compresses the carry the trade was built on, and at some point the expected return no longer compensates for the exchange-rate risk. The second is a spike in volatility or risk-off sentiment, because carry trades depend on a stable or risk-on environment for the exchange rate to behave. When VIX rises, equities sell off, or a geopolitical shock hits, traders cut their carry exposure to reduce overall portfolio risk, which itself pushes the high-yielder down against the funder, which triggers more stops, which pushes it down further. That feedback loop is why a carry unwind is rarely orderly, and it is also why correlation between yen pairs and risk assets, S&P 500 and the like, tends to spike during these episodes. The 2024 to 2026 yen episode is the cleanest modern example: years of accumulated short-yen carry built up as Japan held at zero, and a hawkish BoJ pivot combined with an August risk-off shock unwound an enormous slice of it in a matter of days.

What the desk does with this in 2026

Three rules. First, treat carry as a portfolio rate-differential trade, not a directional view, and size it like one: real carry returns are slow and small, and the temptation to leverage them up is what blows accounts in the unwinds. Second, watch the two ignition triggers like a hawk: any sign of a hawkish pivot from the funder, the BoJ above all in this cycle, and any meaningful spike in volatility or risk-off positioning, because both have started every major unwind in the historical record. The 2026 BoJ has continued to drift hawkish, which is why the desk does not run a permanent long USD/JPY carry the way the 2010s playbook suggested. Third, when an unwind starts, do not fight it: yen pairs can move multiple percent in a day during these episodes, and the second-day flush is often larger than the first. The yen-carry piece linked below covers the current cycle in more detail, and the gold and dollar pieces explain the haven flows that accompany the unwinds. Read the rate differential, the BoJ tone and the volatility picture together; that is the carry-trade dashboard.

The desk’s checklist

1. Understand the mechanic first. Borrow in a low-rate currency, lend in a high-rate one, pocket the difference. In FX you express this with positive-swap pairs where the broker pays you daily for being long the high-yielder against the funder.
2. Know why it keeps working most of the time. Yield-hungry capital, the empirical failure of uncovered interest parity, and the smooth equity curve when conditions are calm keep money flowing into carry trades despite the known tail risk.
3. Watch the funder central bank for any hawkish drift. The biggest unwinds start when the funder, the BoJ above all in the current cycle, surprises hawkish. A hike or a signal of one compresses the rate gap the trade is built on.
4. Watch volatility and risk-off for the second trigger. VIX spikes and equity sell-offs push traders to cut carry exposure, which feeds back into the FX move. Carry and risk-on are joined at the hip; broken risk appetite breaks the carry.
5. Size for the unwind, not the calm. Real carry returns are slow and small; the unwind moves are not. Size positions so a multi-percent yen-pair move in a day does not blow the account, and accept the second-day flush often exceeds the first.

Frequently asked

What is a carry trade in simple terms?

A carry trade is borrowing in a currency with a low interest rate and using the proceeds to invest in a currency or asset with a higher rate, pocketing the difference. In FX it usually means going long a high-yielding currency against a low-yielding one, with the broker paying you the interest-rate differential each day in the form of positive rollover or swap.

Why is the Japanese yen the classic carry funder?

Because Japanese interest rates spent more than two decades close to zero or negative, which made yen borrowing extremely cheap relative to almost any other currency. That made the yen the natural funding leg of carry trades into higher-yielders like the Australian dollar, New Zealand dollar, US dollar and Mexican peso. As the BoJ has slowly normalised policy, that classic setup has become much less reliable.

What triggers a carry trade unwind?

Two things, usually together. The first is a narrowing of the interest-rate gap, often a hawkish surprise from the funding-currency central bank, which compresses the carry the trade depends on. The second is a spike in volatility or risk-off sentiment, which pushes traders to cut carry exposure across the board, and the resulting move feeds on itself as more stops get hit.

Are carry trades still worth doing in 2026?

The classic structural short-yen carry has become much riskier as the Bank of Japan has drifted hawkish and the 2024 to 2026 episodes have repeatedly shown how violently the trade can unwind. Carry as a concept is alive, but it has to be sized as a small piece of a wider portfolio, watched closely for funder-bank pivots and risk-off, and not relied on as a standalone strategy the way the 2010s playbook suggested.

What is the difference between FX carry and bond carry?

FX carry is going long a high-yielding currency against a low-yielding one, earning the rate differential through daily swap. Bond carry is borrowing at a short-term rate and lending at a longer-term rate, earning the difference between them, the term premium. Both rely on the spread staying intact and on the underlying market staying calm, and both unwind in similar circumstances when volatility spikes.

Educational analysis only, not financial advice. KenMacro has commercial partnerships with some firms referenced and may earn a commission if you open an account, at no cost to you. Manage risk against your own circumstances.