Fed Rate-Hike Bets Surge to 68% as Warsh Signals Inflation Risk, Dollar Firms Against Yen
Fed funds futures traders priced 68% odds of a September 2026 Federal Reserve rate hike as of September 1, up from 35% before Federal Reserve Chairman Kevin Warsh acknowledged inflation risk in late August. The shift, tracked in Tradeweb data, gathered pace during the September 7 trading session as the WSJ Dollar Index sat at 95.72, down 0.39% over the prior month but firming on the back of the repriced expectations. Reuters
The repricing is a sharp reversal from mid-August. On August 13, Fed funds futures showed just a 35% probability of a September hike, down from 40% the prior Wednesday. That was the day Fed Governor Christopher Waller said he would support holding rates steady if August inflation data justified it, a remark that briefly steadied the dollar at a WSJ Dollar Index reading of 96.26 and lifted U.S. equities. Reuters
Warsh's late-August remarks changed that calculus. The dollar strengthened 0.48% against the Japanese yen to 160.15 on August 28, on track for its third weekly gain in four weeks, as Wall Street digested what looked like a more hawkish tilt from the Fed chair. Treasury yields and the dollar kept rising alongside oil prices into early September, with markets seeing nearly equal chances of a hike or a hold at the September 16 FOMC meeting. Reuters
By September 4, the dollar had strengthened 0.26% against the yen to 156.19, a level that itself reflects significant movement from the 160.15 print six days earlier. The yen's appreciation was driven by a separate but concurrent dynamic: traders ramped up bets on further Bank of Japan rate hikes. On September 3, the yen jumped more than 2% against the dollar in a single session. Reuters
The yen's surge during the week of September 4 underscores a market caught between two central bank narratives. The Fed's rate path is tilting hawkish, pressuring Asian currencies broadly, while the Bank of Japan's tightening trajectory is independently boosting the yen. For other Asian currencies, the picture is more one-directional: they were consolidating against the dollar in early September trade but potentially weakening on growing Fed rate-hike prospects. WSJ
The 10-year Treasury yield fell 1 basis point to 4.710% on September 7, a modest pullback that sits oddly against the 68% hike probability. One possible read: the long end is pricing in the growth-dampening effect of a hike rather than the hike itself. If the Fed tightens in September, the curve may be betting that subsequent easing cycles come sooner, compressing long-duration yields even as the front end reprices. This is a classic flattening dynamic, and it is worth watching whether the 2s10s spread continues to compress in the sessions ahead.
Looking at what this means for positioning, the jump from 35% to 68% hike odds in roughly two weeks is a substantial repricing in a compressed window. Markets that were pricing a Fed on hold have had to rapidly adjust. The WSJ Dollar Index at 95.72 reflects that tension: down over the month, but the directional pressure from rate expectations is upward. Asian currency desks face the brunt of this ambivalence, caught between a firmer dollar on rate differentials and localized factors like the BOJ's own hiking cycle. The September 16 FOMC decision will be the clearing event, but the August inflation print that Waller flagged as his conditioning data is the proximate catalyst. Until that data lands, the 68% figure is a live, moving probability, not a settled outcome.
