Waller Cuts the Odds of a September Rate Increase

A cooler-inflation condition from the Fed governor reversed part of the hawkish repricing triggered days earlier and lifted risk assets.

By Tomas Almeida • • Markets

A metal rate path levels out beside a suspended counterweight and two diverging illuminated routes.

Federal Reserve Governor Christopher Waller said he was leaning toward leaving interest rates unchanged in September if August inflation continues to cool, reversing part of the hawkish market repricing that followed Chair Kevin Warsh’s recent speech. Waller said he would support an increase if the data run hot, making the next consumer-price report the critical condition rather than committing to either outcome.

The federal-funds target is 3.50% to 3.75%. Waller described that setting as only slightly restrictive, but argued that inflation could be moving lower after temporary pressure. Reuters reported that the personal consumption expenditures price index rose 3.7% in July. That remains well above the Fed’s goal and leaves officials with little margin for an upside surprise.

Markets reacted quickly because the comments altered the balance within the Committee. The implied probability of a September increase fell to roughly 50% from more than 63%, according to Reuters, while Treasury yields pulled back. U.S. equities rose, with the Dow, S&P 500 and Nasdaq all gaining more than 1% in the session cited by the news service.

The move is a genuine update to the rate story, not a reversal of completed policy. Warsh had put a September increase back into market pricing by stressing inflation persistence and financial conditions. Waller introduced an explicit path to a hold if incoming data validate cooling. Neither official controls the decision alone, and both positions are conditional.

The distinction matters for borrowers and investors. A hold would avoid an immediate rise in floating-rate costs, but it would not necessarily begin an easing cycle. A rate increase would signal that the Fed sees inflation risk as more dangerous than the cost of further restraint. Bond prices, bank funding, equity valuations and the dollar can move before the meeting as each data point changes that trade-off.

The next inflation release will carry unusual weight. A benign report can support Waller’s view that maintaining the current rate is sufficient. A strong result could shift him toward an increase and validate the hawkish case. Employment and financial conditions also matter, but Waller’s formulation makes inflation the clearest near-term trigger.

Investors should be careful with point-in-time probabilities. Futures markets aggregate current positions and hedging demand; they are not official forecasts. The sharp change after one speech demonstrates how sensitive pricing has become to communication. It also shows why a nearly even probability is uncertainty, not consensus.

Why it matters

The Fed’s September choice now has two credible paths articulated by senior officials. That reduces the value of treating the earlier hawkish signal as settled policy and increases the importance of actual inflation data. For markets, the result is greater event risk around the release and the meeting.

The change also affects global financing. U.S. rate expectations feed into Treasury yields, exchange rates and the cost of dollar credit. A lower probability of an increase can ease conditions even before the Fed acts, while a hotter inflation print can reverse that relief quickly.

Waller did not promise a hold, and the market reaction does not prove that inflation is contained. His statement was conditional, the Fed decides collectively, and July inflation remained elevated. The development is meaningful because it changed the policy distribution and prices; the final answer still depends on evidence that had not been published when he spoke.

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