EVENT FORECAST · Macro & Monetary Policy
The Hike Is Nearly Consensus. The Real Variable Is How Warsh Defines What Comes Next
Monetary Policy × Market Pricing | Event Forecast | 16 September 2026
ACIS assigns a 92% subjective probability to a 25-basis-point hike, lifting the target range to 3.75%–4.00%. The communication base case is data-dependent hawkishness: reaffirm the 2% inflation target and sticky inflation without pre-committing to another hike.
ACIS subjective probability of a 25bp hike
Target range after a 25bp hike
Probability of at least one further hike
Forecast locked pre-decision | +25bp probability 92% | Decision confidence HIGH | Communication confidence MEDIUM
01 · RESEARCH BRIEF
The one-minute brief
Markets have largely priced the 25-basis-point move, leaving little edge in forecasting the decision alone. The information lies in Warsh’s reaction function, whether the SEP and dot plot imply another hike this year, and whether the 10-year Treasury yield continues to rise.
Audio transcript
For today’s FOMC, ACIS assigns a ninety-two percent probability to a twenty-five basis point hike, lifting the target range to three point seven five to four percent. But the move is largely priced. The real variable is how Warsh defines what comes next. Our communication base case is data-dependent hawkishness without pre-commitment: reaffirm the two percent target and sticky inflation while avoiding a promise of another hike. After the release, we will separately score the decision, the communication and the market reaction.
Known facts and open questions
- Classification
- Event Forecast / Pre-decision record
- Forecast objects
- Decision + statement + SEP/dot plot + press conference
- Evidence level
- Schedule and data confirmed; probabilities and language are ACIS judgments
Decision
A 25bp hike is the high-probability base case with limited forecast edge.
Communication
Base case: data-dependent hawkishness without a commitment to continuous hikes.
Market reaction
The dot plot, 10-year yield and repricing of a second hike matter most.
02 · THESIS → EVIDENCE → UPDATE
What changed in the thesis?
Today’s move is highly probable, but the next step remains close to a coin toss
- Prior thesis
- The July FOMC held the target range at 3.50%–3.75% while markets built expectations for a September hike.
- New evidence
- August headline CPI rose 0.4%, core CPI 0.3% and PPI 0.4%. Warsh has stressed that inflation remains above the 2% target and that price stability should be the predominant focus.
- Updated view
- ACIS assigns 92% to a 25bp hike but does not make another December hike the base case. The likelier message tightens now while preserving future optionality.
03 · EVIDENCE & ANALYSIS
Evidence and analysis
01｜What exactly are we forecasting?
The forecast covers the 2:00pm ET rate decision, the statement, SEP and dot plot, and the 2:30pm press conference. The decision and communication calls must be scored separately.
02｜Three decision scenarios
ACIS assigns 92% to a 25bp hike, 7% to a hold and 1% to a 50bp hike. A quarter-point increase would lift the target range from 3.50%–3.75% to 3.75%–4.00%.
03｜Why is the hike probability so high?
August CPI and PPI show persistent price pressure, while energy can lift inflation expectations. Markets also assign more than a 90% probability to a quarter-point increase.
04｜What is Warsh most likely to say?
The base case is not the declaration of a continuous hiking cycle. It is a message that inflation remains above target, risks remain salient, decisions depend on incoming data and policy is not on a preset course.
05｜Will the Fed hike again?
ACIS assigns 45%–55% to a pause after September and 45%–55% to at least one further hike. The first shot is highly probable; the second is close to even.
06｜The three signals that matter
Watch whether Warsh frames the move as a new cycle, whether the year-end median dot implies another hike, and whether the statement upgrades its language on inflation risks.
04 · INVESTMENT IMPLICATIONS
Industry and asset implications
QQQ / MSFT / GOOG
Likely volatile initially; direction depends more on whether the 10-year yield breaks higher.
VRT / High-beta AI
More discount-rate sensitive; stability is possible if long yields stop rising.
COIN / CRCL
A clearly hawkish Fed would compound the CLARITY setback; a merely data-dependent tone may clear some bad news.
Long-duration Treasuries
Avoid front-running the result; higher long yields would improve future risk-reward.
Gold / Crypto
Near-term direction depends on the dollar and real yields; a clearly hawkish surprise is usually negative.
The decisive market variable is not whether the Fed hikes 25bp, but whether long yields interpret the move as the start of sustained tightening.
05 · VALIDATION & RISKS
What to verify next
Decision base case
A 25bp hike to 3.75%–4.00%.
Failure signal: The FOMC holds or hikes 50bp
Communication base case
Emphasis on the 2% target, sticky inflation and data dependence without committing to the next hike.
Failure signal: Warsh clearly frames the move as one-and-done
More hawkish case
The dot plot and press conference clearly point to further hikes.
Market-pricing test
Separate the policy call from the actual response in the 10-year yield, dollar and growth assets.
What would change our view?
The forecast can fail because of internal FOMC disagreement, dot-plot dispersion, Warsh’s live wording or prior market pricing. Even a correct policy call can produce the opposite price reaction because of positioning, liquidity and long-end supply pressure.
06 · FAQ
Key questions
Is a 25bp hike certain?
No. The 92% figure is ACIS’s ex-ante subjective probability, not an official commitment.
Why might stocks rise after a hike?
If the move is fully priced and the dot plot or press conference is not more hawkish, markets can rally on relief.
What does data-dependent hawkish mean?
Policy prioritizes inflation control, but future action depends on new data rather than a preset hiking path.
What is forward guidance?
Central-bank communication about the likely future policy path. Warsh has been cautious about excessive path-based guidance.
How will the forecast be checked?
We will separately record the decision, dot plot, Warsh’s tone and market reaction, then classify decision, communication and pricing errors.
07 · TERMS & SOURCES
Terms, sources and related research
Key terms
- Basis point
- One-hundredth of a percentage point; 25bp equals 0.25 percentage points.
- SEP / dot plot
- FOMC economic and rate projections; the dots show individual participants’ policy-rate views.
- Reaction function
- How a central bank changes policy in response to inflation, employment and financial conditions.
- Data-dependent hawkish
- A bias toward inflation control without a commitment to a preset sequence of hikes.
- Real yield
- A nominal yield adjusted for expected inflation; an important input for gold and growth-asset valuation.
[1] Federal Reserve | September 2026 FOMC calendar ↗
[2] Federal Reserve | July 2026 FOMC statement ↗
Evidence boundary: the meeting time, current target range, CPI, PPI and Warsh’s public remarks come from official sources. The 92% probability, communication scenarios and further-hike probability are ACIS ex-ante judgments. The report has no access to an unreleased FOMC decision and is not investment advice.