Above 3.4% to 3.9% +18.1 ptsAbove 2.9% to 3.4% −1.2 ptssince 21 Sep

Key data points

Data for
12 months to December 2026
Release
20 Jan 2027, 07:00 UTC
Middle estimate
3.9%
80% range
3.4% to 4.4%
Most likely
Above 3.4% to 3.9% 63%
Next release
–
Release after
–
Updated
07:47 UTC delayed 15 min

Market info

Category
Economic data
Source
Prediction markets
Frequency
Every 15 minutes
Units
Percent

Settles on: ONS UK consumer price index, 12-month percent change to December, not seasonally adjusted. From prediction markets, where traders buy and sell contracts on what will happen. Narwhal blends their prices into one probability for each outcome.

Odds by outcome

UK CPI odds by outcome, 12 months to December 2026
OutcomePolymarketBlended
0.9% or lower<1%<1%
Above 0.9% to 1.4%1%1%
Above 1.4% to 1.9%2%2%
Above 1.9% to 2.4%2%2%
Above 2.4% to 2.9%1%1%
Above 2.9% to 3.4%19%19%
Above 3.4% to 3.9%63%63%
Above 3.9% to 4.4%8%8%
Above 4.4%2%2%

Markets

Prediction markets behind these odds
MarketWeight in blend24h volumeOpen interestSettles on
Polymarket100%$2K–Office for National Statistics

Common questions

What do prediction markets expect for UK CPI for 12 months to December 2026?

A middle estimate of 3.9%, with an 80% chance of 3.4% to 4.4%. The most likely single outcome is Above 3.4% to 3.9%, at 63%.

When is UK CPI for 12 months to December 2026 released?

20 Jan 2027, 07:00 UTC.

Where do these odds come from?

From prediction markets, where traders buy and sell contracts on what will happen. Narwhal blends their prices into one probability for each outcome.

How often do the odds update?

This page shows odds delayed by 15 minutes. The Predictions API serves live odds on paid plans.

Are these odds a forecast or advice?

No. They reflect traders' bets, which can change quickly. They are not an official forecast or investment advice.

Source
Prediction markets, blended by Narwhal; delayed 15 minutes, as of 9 Oct 2026, 07:47 UTC
Predictions API →
API
GET /v1/predictions/topics/gbr-cpi-annual
Predictions API →
Economics
Latest official figure
United Kingdom inflation rate →