Scenario
If the Fed raises rates in December: what follows
The Federal Reserve raised its rate in September and held it at 3.75–4% in October, with two officials voting for another rise. After a strong October jobs report, futures put the chance of a quarter-point rise on 8–9 December at about 77%. This page follows what a rise would set in motion, and what would happen if the Fed held instead. It explains cause and effect; it does not predict the decision.
1 · Where we are
A rise is mostly priced in already
3.75–4.00%Fed target range now
4.00–4.25%After a quarter-point rise
~77%Chance priced by futures, 6 Nov
4.56%US 2-year yield, 9 Nov
The 2-year yield already sits about +68 bp above the middle of the Fed's range: bond investors have priced in rises before they happen. See what markets are pricing, updated daily.
2 · The chain
What a rise sets in motion
- The dayThe decision, and the words around itBecause a rise is largely expected, its own effect on markets would be small. What moves prices is the surprise: the Fed's statement, the chair's press conference and, in December, officials' new projections for rates (the "dot plot"). Signals of further rises would push yields up; signals of a pause would pull them down.
- DaysVariable rates resetBanks' prime rate, conventionally the top of the Fed's range plus 3 points, would rise from 7.00% to 7.25%. Credit cards, home-equity lines and many business loans are priced off it, so their rates follow within a billing cycle or two.
- WeeksLong-term rates: it dependsThe 30-year mortgage rate, 7.18% on 5 Nov, follows the 10-year Treasury yield rather than the Fed. A rise seen as firm on inflation can even lower long-term yields, by reducing the risk premium investors demand for inflation; one seen as too timid can raise them.
- WeeksThe dollar and other countriesHigher US rates make dollar assets more attractive, which tends to support the dollar, other things equal. Central banks whose currencies are pegged to the dollar, such as Hong Kong's and most in the Gulf, usually move their own rates in step.
- 1–2 yearsSpending and inflationHigher borrowing costs gradually cool spending and hiring, which eases pressure on prices. The Fed acts now for an effect it expects mainly in 2027 and 2028.
- Policy rate
- The short-term interest rate a central bank sets. It anchors what banks pay to borrow from each other overnight, and from there flows into loan and savings rates. Its name differs by country.
- Inflation expectations
- How fast people, firms or investors think prices will rise in the future. Central banks watch them because wage demands and price setting follow them, so expectations that drift up can make high inflation last.
- Bond yield
- The annual return a buyer earns by purchasing a bond at today’s price and holding it to maturity. When a bond’s price falls, its yield rises. The 10-year yield is the benchmark for mortgages and long-term business loans.
- Term premium
- The extra yield investors demand for locking their money up for many years, on top of what they expect short-term rates to average. It compensates for uncertainty about inflation and government finances.
- Fixed vs variable rate
- A fixed-rate loan keeps the same interest rate for an agreed period; a variable (or adjustable) one moves with a reference rate, usually the central bank's. It decides how fast a rate change reaches borrowers.
- Carry trade
- Borrowing in a currency with low interest rates to invest in one with higher rates, and pocketing the difference. It pays while exchange rates are calm, and can unwind violently when they move.
Example: The Bank of England’s policy rate is called Bank Rate, 4.00% since 5 November 2026.
Example: In October 2026, US households expected prices to rise 4.7% over the next year and 3.5% a year over the next five to ten years, according to the University of Michigan’s survey, both the highest since May.
Example: The US 10-year Treasury yield was 4.99% on 27 October 2026, close to its highest since 2002.
Example: If investors expect the policy rate to average 4.0% over the next ten years and the 10-year yield is 4.5%, the term premium is about 0.5 points. It can’t be observed directly, so economists estimate it with models.
Example: Most Australian home loans are variable, so the RBA's rise to 4.85% on 3 November 2026 reached household budgets within weeks; most US mortgages are fixed for 30 years.
Example: For years investors borrowed in yen at near-zero rates to buy dollar assets. When they rushed to repay in August 2024, the yen jumped about 12% against the dollar in a month.
3 · Who feels it
Fast for some, slow for most
Card and variable-rate borrowers
Fast: within weeks
Rates linked to prime rise by the full quarter point. On $5,000 of card debt that is about $12.50 more interest a year: small alone, but it adds to the rises since September.
Homeowners
Slow: most have 30-year fixed loans
Most US mortgages are fixed for 30 years, so existing borrowers are untouched. New buyers face rates already above 7%. See how a rate rise reaches your wallet.
Savers
Money-market yields follow quickly
Money-market funds and high-yield savings accounts tend to pass on Fed rises within weeks; ordinary bank deposits usually lag.
Bondholders
Short bonds have priced it; long bonds react to the message
Short-term Treasuries already reflect a likely rise. Prices of long-term bonds move on what the decision says about inflation, as why bond prices fall when yields rise explains.
Abroad
Emerging markets and Japan
A firmer dollar raises the cost of dollar debt for emerging economies, and widens the gap between US and Japanese rates that has kept the yen weak, near 158.23 per dollar.
If the Fed holds instead
- With a rise largely priced in, a hold would be the bigger surprise: short-term yields would likely fall and the dollar weaken on the day.
- Long-term yields could rise if investors read a hold as tolerating inflation, as happened after the October hold, when the 30-year yield rose while the 2-year fell.
Why the Fed is considering it
Inflation was 3.7% in September, driven by fuel, and October brought 165,000 new jobs with pay up 0.4% in a month. The Fed's concern is that the oil shock spreads into wages and expectations. Its last fight with entrenched inflation, under Paul Volcker, needed rates near 20%; today's moves are a quarter point at a time.
5 · What could change it
The data before 8–9 December
October consumer prices (10 November, published without the usual annual rate), the November jobs report, the oil price, and whether the share-price fall of early November deepens into tighter credit. Each can move the odds in either direction.
In the news
Where this is at work now
Recent stories, newest first.
Link 1 · InflationEffect
US inflation ran hotter than expected in October, and services are the reason
The CPI rose 0.4% in October (forecast 0.3%) after 0.6% in September. Core CPI, without food and energy, rose 0.3% (forecast 0.2%). Energy rose 0.7%, food 0.5% and shelter 0.3%. Gasoline was 37.4% dearer than a year earlier.
US consumer prices rose 0.4% in October and core prices 0.3%, both a tenth more than economists expected. Energy cooled after September's jump; what kept inflation up was food, rents and other services. That matters because it suggests the oil shock is spreading beyond fuel, the "second-round effect" central banks fear.
11 Nov 2026 · United States
Link 2 · BondsEffect
After the inflation report, markets put a December Fed rise near certain
The 2-year Treasury yield rose about 19 basis points to 4.74% on 10 November, and the 10-year about 13 basis points to 4.99%. Futures put the chance of a quarter-point rise in December at about 85–90% and of a half-point rise at 10–15%; the chance of no change fell to about 3% from 21%.
Within hours of the October inflation figures, the two-year Treasury yield had its biggest one-day jump since April 2025 and futures priced a Fed rise in December as all but certain. Some even bet on a half-point move. A clear example of how markets turn one data point into a new path for interest rates.
11 Nov 2026 · United States
Link 1 · InflationCause
Tuesday's US inflation report will have no annual inflation rate. Here's why
The Bureau of Labor Statistics never collected October 2025 prices, so it cannot compute 12-month changes for October 2026 for most indexes. It will publish monthly changes instead. Economists expect 0.3% overall and 0.2% core (Bloomberg survey).
On 10 November the US publishes October inflation, the most important data point before the Fed's December meeting. But it will not include the usual headline number, the 12-month rate. The reason dates back a year, to a government shutdown that stopped price collection in October 2025.
8 Nov 2026 · United States
Link 3 · Expected ratesEffect
Americans feel a little better, and expect less inflation
The University of Michigan's sentiment index rose to 51.0, above the 48.0 expected. Year-ahead inflation expectations fell to 4.3%, the lowest since August; long-run expectations eased to 3.4% from 3.5%.
US consumer sentiment rose to 51.0 in early November from 48.0, and the inflation households expect over the next year fell to 4.3% from 4.7%. Expectations matter because people act on them. They are still well above where they were before the oil shock.
7 Nov 2026 · United States
Link 3 · Expected ratesCause
The Fed holds rates, but markets expect a rise in December
The Fed held at 3.75–4% in a 10–2 vote; two officials wanted a quarter-point rise. Futures still price a rise in December. From 2027, one of the Fed's eight meetings a year will have no rate decision.
The Federal Reserve kept its key rate at 3.75–4% on 28 October, with two officials voting for an increase. Short-term bond yields fell and long-term ones rose: a small move that shows how markets read a central bank.
29 Oct 2026 · United States
Link 1 · InflationCause
Americans expect higher inflation, days before the Fed decides
Year-ahead inflation expectations rose to 4.7% and long-run expectations to 3.5% in October, the second rise in a row, three days before the Fed’s decision.
US households now expect prices to rise 4.7% over the next year, and 3.5% a year over the long run, both the highest since May. Central banks watch these numbers because expectations can turn into inflation.
26 Oct 2026 · United States
All news →
Sources and notes
- Fed decisions and votes: Federal Reserve statement of 28 October 2026, as reported by Fortune and The Washington Times. Probability of a December rise: CME FedWatch, 6 November 2026, as reported by 24/7 Wall St.
- October jobs: Bureau of Labor Statistics, 6 November 2026. Inflation: BLS (via FRED).
- Prime rate convention: US banks' prime rate is set at the top of the Fed's target range plus 3 percentage points (Wall Street Journal prime rate). Card example: our calculation.
- Mortgage rate: Freddie Mac (via FRED). Yields: US Treasury (via FRED).
- This is an explanation of cause and effect, not a forecast or investment advice.
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