Carry Trades Wobble as Yen Swings Roil One of Year’s Best Bets

Japan is threatening to derail one of the most profitable currency bets this year: carry trades borrowing the yen to invest in emerging-market currencies.

A gauge of yen volatility jumped to the highest level since July this week as Japanese officials were suspected to have twice intervened to prop up the besieged currency. Yen-funded emerging-market carry trades are headed for a loss this week, with those targeting the Indian rupee and Colombian peso suffering among the biggest declines.

Carry trades involve investors borrowing in low-yielding currencies, such as the yen, and investing in higher-yielding ones, typically in emerging markets. The yen’s prolonged weakness and relatively low volatility have made it the premier source of borrowing this year: carry trades funded in the currency have generated positive returns versus every single emerging-market target.

That may be about to end. The carry-to-risk ratio for yen-funded carry trades targeting eight emerging-market currencies has fallen from their highs reached in March, suggesting the risk-reward for the strategy has worsened, according to data compiled by Bloomberg. The deterioration has been mainly driven by a rise in yen volatility amid suspected intervention by the authorities, the data show.

The effect of Japan’s suspected currency intervention on emerging markets “is going to be fun to watch,” said Bob Savage, head of markets strategy and insights at BNY Mellon in New York. Investors are likely to rotate toward Asian currencies such as the Indonesian rupiah and away from the Turkish lira and the Brazilian real, he said.

The carry trade has been coming under pressure this year as the winding back of bets on Federal Reserve interest-rate cuts and rising geopolitical tensions in the Middle East sap risk appetite. The currencies of Mexico, Colombia and Argentina have all slumped more than 2% in the past month as carry traders unwound long positions due to rising funding costs and escalating volatility.

“Latam has been the destination for carry trades, so regional currencies could be most affected if yen strength does result in a bit more of a disruption,” said Brendan McKenna, an emerging-markets currency strategist at Wells Fargo in New York. “But carry trades had unwound a decent amount over the last few weeks so the impact may not be as large as it could have been, say, in early April or late March.”