The Federal Reserve has just held rates, two of its voters wanted a hike, and the prediction market covering the December meeting barely blinked.

On XPredict, the outcome “25 bps increase” trades at 0.72: participants paying 72 cents for a contract that pays 1 USD only if the Fed raises rates by a quarter point on 9 December. “No change” sits at 0.25. Everything else is a rounding error.

The interesting part is how little the statement moved it. On Polymarket’s hourly history the quarter-point hike printed 0.765 in the hour before the 28 October release and 0.785 three hours after it, with no spike and reversal in between. Net changes on the Fed Decision in December? on XPredict market stay small: the hike is down about four points over two days, half a point over seven, and about two points over thirty.

Ten weeks ago the same market was priced the other way: on 19 August, “No change” was the favourite at 0.675 and a quarter-point increase sat at 0.255. The consensus inverted over the autumn, and October did not shake it.

What the December market is pricing today

The published rules resolve to the amount by which the upper bound of the target range changes, round any unlisted change into the nearest bracket, and fall back to “No change” if no statement is issued. Exactly one can win, which is why these probabilities can be read together as a distribution.

Fed Outcome	Yes Probability	No Probability	Multiplier
50+ bps increase	1.9%	97.9%	52.63x
25 bps increase	72.0%	27.0%	1.39x
No change	25.0%	76.0%	4.00x
25 bps decrease	0.5%	99.5%	200.00x
50+ bps decrease	0.3%	99.6%	333.33x

Source: XPredict | Volume: $9,132,909.14 | Expected Resolution: December 9, 2026

Multipliers are derived from the displayed Yes price, since a winning share settles at 1 USD. Displayed Yes and No are reported as shown and do not always total 100 percent.

The Fed raised rates to a 3.75–4.00 percent target range on 16 September by a unanimous 12–0 vote, then held there on 28 October by 10–2, with Lisa Cook and Beth Hammack dissenting in favour of a further quarter point. Both statements called inflation elevated.

The October language also changed. September said the Committee’s action would support a timelier return to the 2 percent goal; October said the accumulation of more information will help determine the appropriate stance. That is a data-dependence clause, and it puts the weight on what arrives next.

The data that could still move it, and the window that closes

One release has already landed. On 29 October the Bureau of Economic Analysis reported third-quarter GDP growth at an annualised 3.4 percent, up from 2.2 percent, and core PCE prices up 0.3 percent in September and 3.1 percent over the year. Strong growth with inflation above target argues for the hike the market is pricing.

Two confirmed releases remain. On 17 November the Census Bureau publishes October retail sales. On 25 November the BEA publishes October personal income and outlays. This is the final core PCE print the Committee will see; the next arrives 23 December, a fortnight after the decision. The November employment report is also due on 4 December, inside the blackout, which restricts public commentary by officials and nothing else.

The releases matter because the data is genuinely ambiguous. Headline CPI ran near 3.7 percent year-on-year in September, above the 2 percent goal, while payroll growth slowed to 29,000 and unemployment edged up to 4.2 percent. Firm prices against a softening labour market is where reasonable people disagree.

Four things that often get treated as one

A policy decision is what the Committee does on 9 December. Rate expectations are what markets think it will do, which is what the XPredict board measures and what moves daily. Risk sentiment is the broader appetite for volatile assets, shaped by yields, the dollar and growth. Crypto-market outcomes are what Bitcoin and other assets actually do.

Each step in that chain is loose. Shifting rate expectations alter the discount rate applied to assets with no cash flows, and they move real yields: the ten-year inflation-protected yield was 2.63 percent on 29 October, down about 28 basis points over thirty days. A firmer dollar is conventionally a headwind for dollar-denominated assets.

How much of October’s crypto move was the Fed?

October offers a rough test of how tight that chain really is. Bitcoin traded at $77,652.84 on 30 October, down 3.2 percent on the day and about 7.1 percent over thirty days. Over the same period Ether fell 17.0 percent and Solana 17.9 percent, while the December hike probability slipped about two points and real yields fell.

December rate expectations alone do not explain a move that size, and the data here does not show what accounted for the rest. Falling open interest does not fill the gap: the dollar value of Bitcoin futures open interest fell about 7 percent over the month, tracking Bitcoin’s own fall, while the coin-denominated figure was nearly flat at minus 0.7 percent and Ether’s rose 1.7 percent. No position had to be closed for the dollar number to drop.

Dates to watch before 8 December

• 17 November: October retail sales, the final retail-sales report before the meeting.
• 25 November: October core PCE, the final inflation print the Committee sees.
• 28 November to 10 December: FOMC communications blackout.
• 4 December: November employment report.
• 8–9 December: the decision, with updated economic projections.

What a crowd-implied probability does and does not tell you

A displayed Yes price is what participants were willing to pay at a moment in time, for a contract paying 1 USD if its condition is met and nothing if it is not. It is a market-implied estimate, not a forecast, not official guidance, and not a view held by XT Exchange.

Volume measures activity rather than conviction. This event has turned over about $9.1 million since opening on 30 July, cumulative turnover rather than money currently committed. The third most-traded outcome is a quarter-point cut, now priced at 0.5 percent, because a cut was a live possibility months ago and traded accordingly.

Prices will move. The remaining prints and the blackout all sit before resolution. The final result depends only on the published rules: the FOMC statement following the 8–9 December meeting, read against the brackets the market defines.

About XT Exchange

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