Japan 10-yr yield tops 3%, yen carry trade unwind risk grows

The breach of 3% on Japan's 10-year yield is a threshold event that shifts the calculus for global fixed-income investors, given Japan's vast US Treasury holdings. The significance lies not in the move itself but in the potential for a feedback loop: higher domestic yields could accelerate repatriation, which would tighten US financial conditions and amplify yen volatility. Bessent's warning underscores that policymakers are watching for disorderly moves, but the market's view that unwind risk is manageable suggests a contained, gradual adjustment so far. The open question is whether the BOJ's expected September hike will be the catalyst that turns this repricing into a sustained capital flow reversal, or if the current pace remains digestible for global markets.