BOJ Rate Hike Triggers Carry Trade Uncertainty

The Bank of Japan (BOJ) raised its policy rate by 25 basis points to 1.25% in a 7-2 vote, marking its sixth hike in roughly 2.5 years and the second in three months.

This move is significant because it makes borrowing costs the highest they've been in 31 years, and it's also tied to global rates, inflation pressure, and financing conditions, not just domestic wages or prices.

The real market risk is the carry trade, where investors borrow yen at low interest rates to invest elsewhere. If borrowing in yen becomes less attractive or if the yen starts to move against leveraged positions, investors may have to unwind trades in size.

Bond investors have been warning about this shift for weeks, and Japan's 10-year government bond yield broke above 3% in early September for the first time since 1996. This changes the economics of everything that used cheap yen financing.