Traders price a September hike at 85% as Warsh faces his first test

Federal Reserve officials meet on September 15 and 16, and the market has largely settled the question in advance³. Rate traders put the odds of a September increase at 85%, on CME FedWatch probabilities derived from 30-day fed funds futures¹. A separate tally put the implied chance at 86%⁵. Citi told clients to expect the Fed to raise rates next week in what it called a closely watched inflation call². It would be the first increase since 2023⁵.

Accounts of the swing vote differ. One report describes Governor Christopher Waller as having taken a more dovish position, encouraged by two consecutive months of cooler inflation data². Others describe him as having set a marker in advance, saying a 0.3% core reading would make a September increase the base case, and warning that it would not take much acceleration in inflation to move him^3,4. Three Fed officials voted to hike at the July meeting⁴.

Why it matters to investors

The live question is not only the September move but what it implies about the sequence behind it. The Wall Street Journal’s reading is that the Fed is poised for a rate rise and rarely stops at one⁶. Richard Clarida, a former Fed vice chair now at Pimco, was blunter: if the Fed hikes next week, he said, additional increases will certainly follow⁷.

The case being made inside the committee is forward-looking rather than backward-looking. St. Louis Fed President Alberto Musalem, who supported a July rate rise, argued it in a speech last month, and that argument rests less on the past three months of data than on what comes next⁶. For portfolios built over three years around an eventual easing cycle, that distinction matters more than the size of any single increase.

What to watch

The vote. Three dissents in favour of a hike in July is the base the September majority is built on, and its composition will say more about the path than the decision itself⁴. Waller remains the marginal voter the market is tracking, and the two published readings of his position cannot both be right^2,5.

The language. CNBC framed the hotter-than-expected inflation data as turning the meeting into a defining test for Chairman Kevin Warsh⁸. The statement and the press conference will be read for a single signal: whether the committee is correcting a one-off overshoot or opening a sequence⁶. The odds published across outlets are close but not identical, at 85% and 86%, which leaves a narrow margin for a surprise in either the decision or the guidance^1,5.