According to Einfomax, Japan's 10-year government bond yield surged to 2.90% on July 9, reaching its highest level in approximately 30 years since September 1996. The surge coincides with growing concerns about potential yen carry trade unwinding, as Japan's Bank of Japan (BOJ) raised its benchmark interest rate from 0.75% to 1.0% last month, widening the interest rate differential with the U.S. to over 2.5 percentage points.
Analysts warn that excessive yen weakness positioning could trigger rapid carry trade liquidation if the yen strengthens or the BOJ signals further rate hikes. The yen carry trade—borrowing low-interest yen to invest in higher-yielding overseas assets—has been a major source of global liquidity for nearly 30 years. A sharp reversal similar to the August 2024 Korean market circuit breaker, when KOSPI dropped 8.8% in a single day, remains a risk if carry trade unwinds accelerate.