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icon for September Inflation UK - Annual

September Inflation UK - Annual

icon for September Inflation UK - Annual

September Inflation UK - Annual

Oct 21

Jan 20, 2027

Oct 21

Jan 20, 2027

3.4-3.6% 40%

3.1-3.3% 29%

4.0%+ 21%

≤2.7% 8%

Polymarket
NEW

3.4-3.6% 40%

3.1-3.3% 29%

4.0%+ 21%

≤2.7% 8%

Polymarket
NEW

≤2.7%

$418 Vol.

11%

2.8-3%

$354 Vol.

6%

3.1-3.3%

$726 Vol.

29%

3.4-3.6%

$939 Vol.

40%

3.7-3.9%

$389 Vol.

3%

4.0%+

$283 Vol.

21%

This is a market about inflation in the United Kingdom over the 12-month period ending September 2026 as reported by the UK Office for National Statistics. This market will resolve to the percentage change in the UK Consumer Prices Index (CPI) over the 12-month period ending in September 2026 according to the monthly Office for National Statistics (ONS) report. The resolution source for this market will be the ONS “Consumer Prices Index, UK” report released for September 2026 (https://www.ons.gov.uk/economy/inflationandpriceindices#publications), currently scheduled to be released on October 21, 2026. Resolution of this market will take place upon release of the aforementioned data. Note: this market will resolve only based on the Consumer Prices Index (CPI) figure. The “Consumer Prices Index including owner occupiers’ housing costs” (CPIH) will not qualify. Note: the resolution source for this market will be the official monthly ONS CPI UK news release, which reports inflation over 12-month periods to only one decimal point (e.g., 2.9%). Thus, this is the level of precision that will be used when resolving the market. If the ONS does not release the relevant figures on the scheduled date, this market may remain open up until the scheduled release time of the next CPI report (https://www.ons.gov.uk/releasecalendar). If the information is not released by that time, this market will resolve according to the figures of the most recent previous month with available data.Recent UK CPI data showed August annual inflation rising to 3.1% from 2.9% the prior month, driven primarily by transport costs including motor fuels. Geopolitical tensions in the Middle East have pushed energy prices higher since the Bank of England’s July Monetary Policy Report, with futures curves now implying a sharper near-term pickup via direct utility bill effects and indirect supply-chain pass-through. Independent forecasters’ September average points to 3.4% for Q4 2026 CPI, while the BoE’s updated assessment anticipates around 3.75% by year-end. Market participants’ modal expectation for end-Q3 2026 sits near 3.2%, aligning with the Polymarket concentration in the 3.1–3.6% bands as traders price in these energy-driven dynamics ahead of the October 21 release.

This is a market about inflation in the United Kingdom over the 12-month period ending September 2026 as reported by the UK Office for National Statistics.

This market will resolve to the percentage change in the UK Consumer Prices Index (CPI) over the 12-month period ending in September 2026 according to the monthly Office for National Statistics (ONS) report.

The resolution source for this market will be the ONS “Consumer Prices Index, UK” report released for September 2026 (https://www.ons.gov.uk/economy/inflationandpriceindices#publications), currently scheduled to be released on October 21, 2026. Resolution of this market will take place upon release of the aforementioned data.

Note: this market will resolve only based on the Consumer Prices Index (CPI) figure. The “Consumer Prices Index including owner occupiers’ housing costs” (CPIH) will not qualify.

Note: the resolution source for this market will be the official monthly ONS CPI UK news release, which reports inflation over 12-month periods to only one decimal point (e.g., 2.9%). Thus, this is the level of precision that will be used when resolving the market.

If the ONS does not release the relevant figures on the scheduled date, this market may remain open up until the scheduled release time of the next CPI report (https://www.ons.gov.uk/releasecalendar). If the information is not released by that time, this market will resolve according to the figures of the most recent previous month with available data.This is a market about inflation in the United Kingdom over the 12-month period ending September 2026 as reported by the UK Office for National Statistics. This market will resolve to the percentage change in the UK Consumer Prices Index (CPI) over the 12-month period ending in September 2026 according to the monthly Office for National Statistics (ONS) report. The resolution source for this market will be the ONS “Consumer Prices Index, UK” report released for September 2026 (https://www.ons.gov.uk/economy/inflationandpriceindices#publications), currently scheduled to be released on October 21, 2026. Resolution of this market will take place upon release of the aforementioned data. Note: this market will resolve only based on the Consumer Prices Index (CPI) figure. The “Consumer Prices Index including owner occupiers’ housing costs” (CPIH) will not qualify. Note: the resolution source for this market will be the official monthly ONS CPI UK news release, which reports inflation over 12-month periods to only one decimal point (e.g., 2.9%). Thus, this is the level of precision that will be used when resolving the market. If the ONS does not release the relevant figures on the scheduled date, this market may remain open up until the scheduled release time of the next CPI report (https://www.ons.gov.uk/releasecalendar). If the information is not released by that time, this market will resolve according to the figures of the most recent previous month with available data.
Volume
$3,108
End Date
Oct 21, 2026
Market Opened
Sep 16, 2026, 6:27 PM ET

Resolver

0x69c47De9D...
This is a market about inflation in the United Kingdom over the 12-month period ending September 2026 as reported by the UK Office for National Statistics. This market will resolve to the percentage change in the UK Consumer Prices Index (CPI) over the 12-month period ending in September 2026 according to the monthly Office for National Statistics (ONS) report. The resolution source for this market will be the ONS “Consumer Prices Index, UK” report released for September 2026 (https://www.ons.gov.uk/economy/inflationandpriceindices#publications), currently scheduled to be released on October 21, 2026. Resolution of this market will take place upon release of the aforementioned data. Note: this market will resolve only based on the Consumer Prices Index (CPI) figure. The “Consumer Prices Index including owner occupiers’ housing costs” (CPIH) will not qualify. Note: the resolution source for this market will be the official monthly ONS CPI UK news release, which reports inflation over 12-month periods to only one decimal point (e.g., 2.9%). Thus, this is the level of precision that will be used when resolving the market. If the ONS does not release the relevant figures on the scheduled date, this market may remain open up until the scheduled release time of the next CPI report (https://www.ons.gov.uk/releasecalendar). If the information is not released by that time, this market will resolve according to the figures of the most recent previous month with available data.Recent UK CPI data showed August annual inflation rising to 3.1% from 2.9% the prior month, driven primarily by transport costs including motor fuels. Geopolitical tensions in the Middle East have pushed energy prices higher since the Bank of England’s July Monetary Policy Report, with futures curves now implying a sharper near-term pickup via direct utility bill effects and indirect supply-chain pass-through. Independent forecasters’ September average points to 3.4% for Q4 2026 CPI, while the BoE’s updated assessment anticipates around 3.75% by year-end. Market participants’ modal expectation for end-Q3 2026 sits near 3.2%, aligning with the Polymarket concentration in the 3.1–3.6% bands as traders price in these energy-driven dynamics ahead of the October 21 release.

This is a market about inflation in the United Kingdom over the 12-month period ending September 2026 as reported by the UK Office for National Statistics.

This market will resolve to the percentage change in the UK Consumer Prices Index (CPI) over the 12-month period ending in September 2026 according to the monthly Office for National Statistics (ONS) report.

The resolution source for this market will be the ONS “Consumer Prices Index, UK” report released for September 2026 (https://www.ons.gov.uk/economy/inflationandpriceindices#publications), currently scheduled to be released on October 21, 2026. Resolution of this market will take place upon release of the aforementioned data.

Note: this market will resolve only based on the Consumer Prices Index (CPI) figure. The “Consumer Prices Index including owner occupiers’ housing costs” (CPIH) will not qualify.

Note: the resolution source for this market will be the official monthly ONS CPI UK news release, which reports inflation over 12-month periods to only one decimal point (e.g., 2.9%). Thus, this is the level of precision that will be used when resolving the market.

If the ONS does not release the relevant figures on the scheduled date, this market may remain open up until the scheduled release time of the next CPI report (https://www.ons.gov.uk/releasecalendar). If the information is not released by that time, this market will resolve according to the figures of the most recent previous month with available data.This is a market about inflation in the United Kingdom over the 12-month period ending September 2026 as reported by the UK Office for National Statistics. This market will resolve to the percentage change in the UK Consumer Prices Index (CPI) over the 12-month period ending in September 2026 according to the monthly Office for National Statistics (ONS) report. The resolution source for this market will be the ONS “Consumer Prices Index, UK” report released for September 2026 (https://www.ons.gov.uk/economy/inflationandpriceindices#publications), currently scheduled to be released on October 21, 2026. Resolution of this market will take place upon release of the aforementioned data. Note: this market will resolve only based on the Consumer Prices Index (CPI) figure. The “Consumer Prices Index including owner occupiers’ housing costs” (CPIH) will not qualify. Note: the resolution source for this market will be the official monthly ONS CPI UK news release, which reports inflation over 12-month periods to only one decimal point (e.g., 2.9%). Thus, this is the level of precision that will be used when resolving the market. If the ONS does not release the relevant figures on the scheduled date, this market may remain open up until the scheduled release time of the next CPI report (https://www.ons.gov.uk/releasecalendar). If the information is not released by that time, this market will resolve according to the figures of the most recent previous month with available data.
Volume
$3,108
End Date
Oct 21, 2026
Market Opened
Sep 16, 2026, 6:27 PM ET

Resolver

0x69c47De9D...

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Frequently Asked Questions

"September Inflation UK - Annual" is a prediction market on Polymarket with 6 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "3.4-3.6%" at 40%, followed by "3.1-3.3%" at 28%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 40¢ implies that the market collectively assigns a 40% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"September Inflation UK - Annual" is a newly created market on Polymarket, launched on Sep 16, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "September Inflation UK - Annual," browse the 6 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "September Inflation UK - Annual" is "3.4-3.6%" at 40%, meaning the market assigns a 40% chance to that outcome. The next closest outcome is "3.1-3.3%" at 28%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "September Inflation UK - Annual" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.