CME FedWatch had the odds of a quarter-point hike Wednesday at 92.3%, as of 12:37 p.m. CT on Tuesday. At Jackson Hole, the same market assigned it 56%. Waller's comments moved it to 55%. September 10 it was 62%. Then CPI printed and it went to 87%.
Last week the story was a split. Prediction markets were leaning toward a hike but not committing, oil was knocking on $100 without holding it, and Warsh's hawkish Jackson Hole turn hadn't yet been ratified by the data. This week the split closed. Goldman Sachs reversed its hold call on Friday. J.P. Morgan Wealth Management and Citigroup had already switched. Oil crossed $100 and stayed.
Brent reached $107.82 and WTI $102.82 after renewed attacks on Saudi energy infrastructure. U.S. diesel is above $6 a gallon, a record. The national average gasoline price of $4.22 was already the highest ever recorded for September, and that reading predates this week's crude move.
A rate hike does not lower the price of diesel. Interest rates don't drill wells.
The mechanic people keep getting wrong: a rate hike does not lower the price of diesel. Diesel is expensive because of tanker risk through contested waterways, refinery disruptions, and tight crude. Interest rates don't drill wells. What a hike does is work the demand side — slow credit-card spending, mortgages, business investment, hiring — to offset the pass-through before it becomes second-round effects in wages and pricing decisions. That is the entire theory of the case.
The textbook response to an oil shock is to look through it. Core CPI did not give Warsh that alibi. August core came in a tenth hot month-on-month, and services ex-housing rose 0.5%, the largest monthly gain of 2026. Headline ran 3.4% year-over-year. Inflation has now spent more than five years above 2%.
The labor market removed the other excuse. August payrolls rose 162,000 against 21,000 in July, with unemployment holding at 4.1%. The 12-month average was 30,900. A Fed can tolerate hot inflation if the economy is deteriorating underneath it. These numbers don't show deterioration.
But look at the other side of the ledger, because it's why one-and-done remains a house view. Average hourly earnings at 3.1% year-over-year have slipped under CPI — real wages are negative. Participation has drifted from 62.6% toward 61.6%. The official sector has not called this labor market overheated. Starting a hiking cycle on that foundation means leaning on something the data haven't built.
Warsh has one vote of twelve, and he is boxed in from three directions. Trump wants cheaper money. At Doonbeg, at the Irish Open, he said: "We should be paying the lowest interest rate in the world, regardless of their formulas." Kevin Hassett said the president will not be "super happy" about a hike and will still "defend the independence of Kevin Warsh." A courtesy, not a put.
The bond market is the second wall. The 10-year sat at 4.96% on September 11, and the 30-year is above 5.3%. That yield is charging extra for a $40 trillion fiscal stock, doubled AI long-term debt, and a chair who will not map the next meeting. Jackson Hole was the make-good for July. A hold now — or a hike followed by another shrug — is a second communication failure. Maurice Obstfeld's framing is blunt: the Fed is in a no-win, the president's wrath or diminished credibility with consequences for inflation later.
The third wall is the committee. Waller entered the blackout more willing to wait. Warsh discounts a single good summer and asks whether the trend has changed. August did not change it. His Jackson Hole line: "We must be confident that underlying inflation is moving to our objective, clearly and at sufficient speed. Otherwise, we have work to do."
If he waits for Waller, investors will ask who actually chairs the meeting.
The mechanics Wednesday: statement and dot plot at 2:00 p.m. Eastern, press conference at 2:30. The dots come from the June 17 SEP, and Warsh has declined to publish his own projection — a break with tradition that leaves the market guessing about the only thing it wants to know.
Which is this: the market has already priced the hike, another 25 basis points in December, and two more in 2027. Warsh dislikes forward guidance and has spent the summer training everyone not to expect the sentence that says what comes next. So the baseline is a hike delivered into expectations that go unmet.
The historical record on first hikes is mostly a shrug. The median cycle-start one-day move in the S&P 500 is not a crash. It's the one-month window where the sample splits: 2015 leaked into a growth scare, 2022 leaked into a much larger cycle and a 10-year that eventually ran 67 basis points. The second and third hikes — and a disorderly long end — are what change the beta.
J.P. Morgan's scenario grid prices the asymmetry. A 25-basis-point hike with no guidance, the consensus, is worth 0.25% to 0.75% on the S&P 500. If Warsh signals taking back the 2025 cuts — October and December instead of December and March — the index gains 0.50% to 1%, because the market rewards decisiveness. If he hints at a materially higher fed funds rate or a higher R-star, the S&P falls 1% to 2%. The hawkish path is the losing one.
The plumbing underneath is already repricing. A quarter-point move takes the funds rate to 3.75%–4.00% and the prime rate from 6.75% to 7.00%. The average credit-card APR, already 19.56% per Bankrate, rises within one or two billing cycles. On a $6,000 balance that's roughly $15 a year. New-car financing already sits at 7.0% APR with a record $44,156 average amount financed and a record $777 monthly payment. SBA 7(a) loans run from about 9.75% to 14.75%.
Worth noting how Goldman got here. The firm said the reversal was driven primarily by market pricing, not by a change in its economic outlook. That is an admission that the market itself has become the input — and it's why a hawkish press conference is the one outcome almost nobody is positioned for.
The positioning risk is not "they hike." The positioning risk is that they hike and still will not tell you whether they will hike again. That is the Warsh product. Wednesday is the first time it has a price on it.