Carry Trade Breakdown: Dollar-Yen Hits 7-Month Low as JPMorgan Warns of Yen Position Unwind

The carry trade, which has been a cornerstone of currency market dynamics for years, appears to be unraveling. The dollar-yen exchange rate recently hit a 7-month low, trading at 154.35 on Monday and down 1.18% on the day. This move comes despite expectations that the strong August jobs report would push the dollar higher against the yen.

Strategists at JPMorgan Chase & Co. had warned about the risks of a bearish yen position unwind if dollar-yen trades through 155, with estimates suggesting around $103 billion in outstanding positions. A full unwind could drag the pair into a 142 to 146 range, according to their calculations.

The carry trade works by borrowing cheaply in a low-interest currency and investing in a higher-paying one, collecting the difference as long as the gap remains wide and exchange rates stay stable. However, with the Japanese government bond yield rising to 2.92% on Monday, its highest level since 1996, and the US 10-year Treasury note at 4.784%, this gap is shrinking.

The Bank of Japan's tightening policy, coupled with pressure from the US Treasury, has also contributed to the yen's weakness. Governor Kazuo Ueda has signalled that policy will be set with upside inflation risks in mind, while board member Hajime Takata left open the possibility of larger or back-to-back increases.