Hedge Funds Get Hammered as Yen Surges Against Expectations
Hedge funds loaded up on yen shorts before its surge, according to CFTC data. Leveraged funds accumulated net short positions of roughly 138,000 contracts in yen futures as of June 30, 2026, the highest reading since 2007.
The logic behind shorting the yen was straightforward: Japan kept interest rates near zero while the US Federal Reserve held rates at significantly higher levels. Borrowing in a low-rate currency to invest in higher-yielding assets made the yen a natural funding currency for global funds.
Japan's Ministry of Finance moved aggressively, and coordinated intervention by the US and Japan in late July and early August 2026 knocked the trade sideways. The effect on positioning was swift and significant: by August 4, 2026, net short contracts held by leveraged funds had dropped to approximately 63,600.
The remaining shorts have analysts at JPMorgan flagging a meaningful risk of accelerated short covering if USD/JPY falls below 155. They estimate that the remaining bearish positions exceed $100 billion in notional value.