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Japan’s central bank raised interest rates to their highest level since 1995 last week, and one prominent fund manager’s takeaway was essentially: thanks for the discount.
Kevin Zhao, a portfolio manager at UBS Asset Management, said any further intervention by Japanese authorities to prop up the yen would offer a good opportunity to sell the currency. His reasoning: the Bank of Japan’s September 18 rate hike doesn’t signal a genuinely hawkish turn, which means the yen’s structural weakness isn’t going away anytime soon.
A rate hike that didn’t convince
The BOJ lifted its policy rate by 25 basis points to 1.25%, the first increase in three months. At 1.25%, Japan’s benchmark rate sits at a level not seen since April 1995.
But the vote told a different story. The decision passed 7-2, with policymakers Toichiro Asada and Ayano Sato dissenting.
Governor Kazuo Ueda’s post-decision messaging was characteristically cautious, reinforcing the impression that this was a reluctant step rather than the start of an aggressive tightening cycle. The yen responded accordingly, depreciating sharply in the sessions following the announcement and trading in the 157-159 range against the dollar.
Japan’s $100 billion problem
Japanese authorities have not been sitting idle. On July 31, 2026, Japan and the US executed a joint yen-buying intervention, the first coordinated effort of its kind in 15 years. Total Japanese currency interventions in 2026 have now exceeded $100 billion equivalent.
Officials have repeatedly signaled their readiness to take “decisive action” against excessive yen moves, emphasizing coordination with Washington.
What the split vote reveals
The 7-2 vote deserves more attention than it’s getting. Central bank dissent on the dovish side, where two members wanted to hold rates steady, suggests internal concern that even this pace of tightening might be too aggressive for Japan’s fragile economy.
That tension within the BOJ is precisely why the market isn’t buying the hawkish narrative. If the central bank itself isn’t sure it wants to keep hiking, currency traders have little reason to bet on sustained yen strength.
Global ripple effects
The yen carry trade, where investors borrow in low-yielding yen to invest in higher-yielding assets elsewhere, has been one of the most popular strategies in global finance for years. When Japan intervenes or hikes rates unexpectedly, the carry trade can unwind violently.
The key variable to watch is whether the BOJ signals willingness to hike more aggressively at its next meeting, or whether the 7-2 split hardens into a more entrenched division. If Ueda can’t build consensus for further tightening, the yen’s path of least resistance remains lower, and every intervention becomes what Zhao sees it as: a selling opportunity gift-wrapped by the Japanese government.
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