Fed Hike Odds Fall to 50% as Waller Flags Disinflation; Asia Gains 1%

For rate and FX traders, the September 4 repricing was the clearest test yet of who controls the Federal Reserve's next move. Waller's explicit preference to hold — conditioned on incoming data — cut September hike odds to 50% from 63% in a single day, while the yen's 2.6% weekly surge to 155.7 per dollar put late-July intervention levels back in play. The payoff structure is binary: a hot payrolls print re-arms the hike trade and re-accelerates the dollar, while a soft one cements the hold and extends the yen's run.

Asian equities extended a global relief rally on Friday, September 4, 2026, after Federal Reserve Governor Christopher Waller told a Reuters NEXT Newsmaker event that recent data showed "some signs of disinflation" and that, if upcoming reports reinforced that trend, he would favor holding rates steady at this month's policy meeting. The remarks triggered an immediate repricing in rate markets: futures traders cut the implied probability of a September rate hike to roughly 50 percent, down from about 63 percent a day earlier. That hawkish premium had built up over recent sessions as a global bond rout drove long-dated yields to multi-year highs on a combination of stubborn inflation, swelling government debt, and geopolitical tension.

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Waller's explicit preference to hold — conditioned on incoming data — cut September hike odds to 50% from 63% in a single day, while the yen's 2.6% weekly surge to 155.7 per dollar put late-July intervention levels back in play.

The most consequential context is who now leads the Federal Reserve. The sources repeatedly reference "Chair Warsh," indicating the policy debate is unfolding under a different chair than the post-2020 consensus era, and JPMorgan analysts frame Waller's comments as a direct rebuttal. "Waller is pushing back against the thrust of the argument made by Warsh last week that there is little evidence that underlying inflation has moved lower," the bank's analysts wrote, adding: "We believe that Chair Warsh will deliver a hike if he advocates for it. Absent his advocacy, Governor Waller's speech reinforces our view that the bar for data to sway the data-dependent majority to hike this month remains elevated." That dynamic — a hawkish chair who may push a hike versus a data-dependent board majority — makes the upcoming payrolls print a genuine binary catalyst rather than routine data.

The foreign-exchange channel is where the story is most visible. The dollar's retreat turbocharged a rally in the yen, which gained 2.6 percent on the week to trade at 155.7 per dollar, putting it within striking distance of the 155.2 level reached after a rare joint intervention by Tokyo and Washington in late July. For Japanese policymakers, the move cuts both ways: a stronger yen relieves imported-inflation pressure and unwinds some of the carry-trade excess that has periodically destabilized markets, but a rapid, disorderly appreciation could threaten exporter earnings and rekindle volatility. The proximity to the late-July intervention level means traders are watching for any Ministry of Finance signals about excessive moves in either direction.

Across Asia, the equity response was broad but uneven. MSCI's broadest index of Asia-Pacific shares outside Japan rose 1 percent, tracking Wall Street's gains, though the index remained down 0.4 percent for the week after earlier losses. Japan's Nikkei gained 0.8 percent on the day but was still down 2.7 percent for the week, underscoring how much damage the prior bond-driven selloff had inflicted. Chinese blue-chips rallied 1 percent and South Korea's KOSPI advanced 1.1 percent. Both Wall Street futures and EURO STOXX 50 futures were flat as traders braced for the August US payrolls report due later in the day — an acknowledgment that the relief rally is conditional and could reverse within hours.