
Yen surges 3% as carry trade unwind accelerates after BOJ rate hike and weak U.S. jobs data. Hedge funds face margin calls, with prime brokers estimating $1.5 trillion in notional exposure. A coordinated policy response could break the cycle.
A sharp reversal in the yen carry trade hit risk assets Monday as the yen surged 3% against the dollar, its biggest single-day gain in over a year. The move followed a surprise Bank of Japan rate hike and a shift in U.S. recession expectations, traders said.
The yen carry trade, which funds positions in high-yield currencies and risk assets with cheap yen loans, has been a staple of hedge fund positioning for years. Last week, margin calls began to cascade after the Nikkei 225 fell 5% in two days. The unwind accelerated as the yen broke through 145 per dollar, a level many leveraged funds used as a stop-loss, traders said.
Exposure to the trade was concentrated in large macro funds and some multi-strategy firms, according to estimates from two prime brokers. The total notional value of yen-funded carry positions was roughly $1.5 trillion, with about a third held by hedge funds, the brokers said. The exact losses are not yet public, but a senior credit officer at a major bank told Reuters that several funds have requested emergency liquidity lines.
The Bank of Japan's rate decision, announced early Friday, pushed the yen higher. The BOJ raised its short-term rate to 0.25% from 0.1% and signaled further hikes if inflation stays above 2%. That caught many carry trade participants off guard, as they had expected no change until September, traders said.
U.S. recession fears amplified the move. Friday's weaker-than-expected payrolls report triggered a selloff in U.S. equities, which then fed back into the yen carry unwind as funds sold risk assets to cover losses. The S&P 500 fell 2.5% on Monday, led by a 4% drop in the tech sector.
What could break the cycle? The Bank of Japan has not intervened so far, but traders said the Ministry of Finance is watching the 140 per dollar level. A coordinated statement from the BOJ and MOF, or a surprise rate cut, would likely calm the market. Without that, the unwind could continue, especially if the yen breaks below 140, traders said.
The next catalyst is Wednesday's U.S. CPI report. A cool print would ease recession fears and slow the risk-off unwind. A hot print would keep the pressure on. The Bank of Japan meets again in September.
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