Will the UK’s 2026 inflation be between 3.5% and 3.9%?
Probability
25¢
1h
+0.0pp
24h
+5.0pp
24h Vol
$0.00
Liquidity
$709.25
Canonical status
confidence: mediumSource status (Polymarket)
Derived status (Orrery)
Reason
Liquidity is below $1,000 — price discovery is unreliable.
The derived status is computed from the source flags plus the live YES price, so a market trading near a rail can read as PRICE-PINNED while upstream is still active. That isn't the same as resolved.
Resolution & Risk
LOW risk- End date
- Jan 20, 2027
- UMA status
- n/a
- Resolution source
- Primaryto the percentage change in the Consumer Price Index (CPI) over the 12-month period ending December 2026, according to tLinkTypeAmbiguous wordingConfidenceextracted · low
- Market type
- Multi-outcome (neg-risk)
- Part of a multi-outcome event (neg-risk): only one market can resolve YES.
- Wide spread (37.0¢) — liquidity risk on entry/exit.
Probability (last 7 days)
+14.0pp 7dWhy did it move?
Structured · 3 factors- 01Price move
Up 5pp over 24h
Now 25¢; flat in the last hour.
- 02Active signal
Resolution-risk observation firing
Spread is wide enough that intraday moves overstate any tradeable edge.
- 03Spread cost
Wide spread — 37.0¢
Bid-ask spread is wide enough that intraday moves overstate any tradeable advantage. Most of the headline pp move would be eaten by spread on a market order.
What to track next
- Verify the resolution source on this page — exchange feed, official release, news consensus — before treating any move as new information.
Verification actions only — never trade recommendations.
Each factor is grounded in a single named metric you can verify on this page — probability, volume, liquidity, signal, resolution state. No predictions, no prose hallucinations.
Resolution & Risk
LOW risk- End date
- Jan 20, 2027
- UMA status
- n/a
- Resolution source
- Primaryto the percentage change in the Consumer Price Index (CPI) over the 12-month period ending December 2026, according to tLinkTypeAmbiguous wordingConfidenceextracted · low
- Market type
- Multi-outcome (neg-risk)
- Part of a multi-outcome event (neg-risk): only one market can resolve YES.
- Wide spread (37.0¢) — liquidity risk on entry/exit.
Timeline
critical · price · trade flowCritical
- Jan 20, 00:00 UTCScheduled resolutionLOW
Market resolves in 5912.7h
- 15:20SignalLOW
Resolution risk
Spread is wide enough that intraday moves overstate any tradeable edge.
Price movement
+5.0pp over the last 24h, now 25¢.
Biggest hourly move: +24.0pp at May 14, 23:00 UTC (to 35¢).
Show top 8 of 57 hourly moves
- May 17, 14:00 UTC · +15.5pp → 23¢
- May 16, 09:00 UTC · +18.0pp → 29¢
- May 16, 00:00 UTC · +16.0pp → 27¢
- May 15, 18:00 UTC · +16.0pp → 27¢
- May 15, 08:00 UTC · +17.0pp → 28¢
- May 14, 23:00 UTC · +24.0pp → 35¢
- May 14, 18:00 UTC · +21.0pp → 32¢
- May 14, 17:00 UTC · +15.5pp → 26¢
Active signals
Recent Trades
No recent trades visible from the Data API for this market. That usually means liquidity is thin or this market is between event windows.
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Market Description
This is a market about the variation of consumer prices in the U.K. over the 12-month period ending December 2026, before seasonal adjustment, as reported by the Office for National Statistics (ONS). This market will resolve according to the percentage change in the Consumer Price Index (CPI) over the 12-month period ending December 2026, according to the monthly ONS report. The resolution source for this market will be the ONS Consumer Price Index monthly report released for December 2026 (https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/consumerpriceinflation/previousreleases), currently scheduled to be released on January 20, 2027. Resolution of this market will take place upon release of the aforementioned data. If no data for the specified month is released by the date the next month's data is scheduled to be released, this market will resolve based on data from the last available month. You can find this report by choosing the report for the relevant month from the previous releases page for price indices on the ONS website (https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/consumerpriceinflation/previousreleases). The relevant figure can be found in the "Consumer price inflation rates" table under the column labeled "CPI 12-month rate (%)" for the relevant month. Note: the resolution source for this market will be the official monthly ONS CPI news release which reports inflation change over 12-month periods to only one decimal point (e.g. 1.9%). Thus, this is the level of precision that will be used when resolving the market. For the full release schedule, see: https://www.ons.gov.uk/releasecalendar
Why this category?
confidence: mediumCategory
Source
Matched term
inflationReason
Question text contains "inflation" — matched the Macro keyword rule.
Categories come from a deterministic engine: manual overrides (highest priority) → sports hard markers → event-tag rules → keyword rules → Gamma category hint → default. The engine is versioned in category-overrides.ts; methodology lives at /methodology.
FAQ — questions readers actually ask
What is the current Polymarket probability for "Will the UK’s 2026 inflation be between 3.5% and 3.9%?"?
As of Mon, 18 May 2026 15:20:03 GMT, YES is priced at 25% implied probability on Polymarket. The price changed +5.0pp in the last 24 hours, +0.0pp in the last hour, and +14.0pp in the last 7 days.
When does this market resolve?
This market resolves by Jan 20, 2027 (2027-01-20T00:00:00.000Z). Resolution is determined from the market description on Polymarket.
What source determines the outcome?
Resolution is sourced from the market description on Polymarket. Polymarket's UMA optimistic oracle is the final settlement layer; if the published source is ambiguous, UMA tokenholders adjudicate. Source-extraction confidence is shown in the Resolution & Risk block above.
How much is being traded on this market?
$0.00 of trading volume in the last 24 hours. Lifetime volume on Polymarket: $525.24. Open liquidity in the YES/NO orderbooks: $709.25. Spread between best bid and best ask: 37.0¢.
Is this a trade recommendation?
No. Orrery describes — never predicts. Every signal on this market carries explicit Evidence, Backtest, and Action tiers. The Action is always one of: Watch only, Inspect timeline, Create alert, Verify source, or Ignore — never Buy or Sell. The probability above is the market's collective implied probability, not a forecast Orrery is publishing.
How fresh is this data and where does it come from?
This page revalidates from the public Polymarket APIs every 30 seconds. Probability and 24h-change come from Gamma; the chart series comes from the CLOB orderbook history; trade and holder data come from the Data API. The fetched-at timestamp on each block tells you exactly how old the underlying upstream pull was.
Alerts
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