TOTAL VOLUME:

$147.3b

24H VOL:

$160,757,820

24H TRANSACTIONS:

2,798,566,680

OPEN INTEREST:

$1,796,460,506

516,586

Markets across

38,144

events

MATCHED EVENTS:

2,845

PLATFORM COVERAGE:

5

Polymarket:

38%

VS.

Kalshi:

62%

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Economics
October 2026 CPI MoM Combo · Headline & Core
kalshi

What will October 2026 CPI MoM be?

Oct 15, 2026, 4:00 PM EST - Nov 10, 2026, 8:25 AM EST
Total volume:
$16,623
Volume 24h:
$702
13%
Liquidity:
N/AN/A
Open interest:
$12,595
2%

Headline: Exactly 0.3%, Core: Exactly 0.3%

 - Kalshi

Headline: Exactly 0.3%, Core: Exactly 0.3% - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Nov 10, 2026

Time left: 17d:15h:31m

Will Headline be Exactly 0.3% AND Core be Exactly 0.3% for Oct 2026?

17%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 19¢ buys you 526 shares | Odds: 17% Total Payout: $526 | Net Profit: $426 Multiplier: 5.26x | ROI: 426% APY not meaningful 17 days to resolution
You will be redirected to the platform to complete this trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Headline: Exactly 0.3%, Core: Exactly 0.3%

Trade
17%
1%
Yes 19¢No 87¢
6¢
N/A
$381
35%
N/A
$381
2w 3d 15h
active
kalshi

Headline: Exactly 0.3%, Core: Exactly 0.2%

17%
Yes 18¢No 89¢
7¢
N/A
$480
0%
N/A
$480
2w 3d 15h
active
kalshi

Headline: Exactly 0.2%, Core: Exactly 0.2%

16%
Yes 16¢No 93¢
9¢
N/A
$1,987
2%
9%
$1,879
2w 3d 15h
active
kalshi

Headline: 0.4% or above, Core: 0.4% or above

12%
Yes 17¢No 92¢
9¢
N/A
$44
0%
N/A
$44
2w 3d 15h
active
kalshi

Headline: 0.4% or above, Core: Exactly 0.2%

9%
Yes 9¢No 97¢
6¢
N/A
$2,761
0%
123%
$2,204
2w 3d 15h
active
kalshi

Headline: 0.1% or below, Core: Exactly 0.2%

6%
4%
Yes 11¢No 100¢
11¢
N/A
$4,579
8%
58%
$1,536
2w 3d 15h
active
kalshi

Headline: 0.4% or above, Core: 0.1% or below

6%
Yes 5¢No 100¢
5¢
N/A
$2,767
0%
3%
$2,478
2w 3d 15h
active
kalshi

Headline: 0.1% or below, Core: 0.1% or below

5%
3%
Yes 11¢No 96¢
7¢
N/A
$601
60%
118%
$601
2w 3d 15h
active
kalshi

Headline: 0.4% or above, Core: Exactly 0.3%

4%
Yes 11¢No 96¢
7¢
N/A
$812
0%
6%
$781
2w 3d 15h
active
kalshi

Headline: Exactly 0.3%, Core: 0.4% or above

3%
Yes 7¢No 100¢
7¢
N/A
$737
0%
0%
$737
2w 3d 15h
active
kalshi

Headline: 0.1% or below, Core: 0.4% or above

2%
Yes 4¢No 100¢
4¢
N/A
$737
0%
0%
$737
2w 3d 15h
active
kalshi

Headline: Exactly 0.2%, Core: 0.4% or above

2%
Yes 5¢No 100¢
5¢
N/A
$737
0%
0%
$737
2w 3d 15h
active
kalshi

Headline: 0.1% or below, Core: Exactly 0.3%

N/A
N/A
2¢
N/A
N/A
N/A
N/A
N/A
2w 3d 15h
active
kalshi

Headline: Exactly 0.2%, Core: 0.1% or below

N/A
N/A
9¢
N/A
N/A
N/A
N/A
N/A
2w 3d 15h
active
kalshi

Headline: Exactly 0.2%, Core: Exactly 0.3%

N/A
N/A
8¢
N/A
N/A
N/A
N/A
N/A
2w 3d 15h
active
kalshi

Headline: Exactly 0.3%, Core: 0.1% or below

N/A
N/A
7¢
N/A
N/A
N/A
N/A
N/A
2w 3d 15h
active
Total markets: 16

Description

These markets track paired economic indicators for October 2026, specifically the month-over-month percentage changes in both headline and core Consumer Price Index (CPI). Contracts pay out only if both specified conditions for headline and core CPI changes are met simultaneously, reflecting scenarios where inflation metrics align in particular ways.

Kalshi

Contracts resolve to Yes only if all specified conditions for both headline and core CPI month-over-month percentage changes are satisfied for October 2026. Headline CPI refers to the all-items inflation rate, while core CPI excludes food and energy. Each component is evaluated using the first officially released value from ECONSTAT, with no consideration for preliminary or revised estimates. If any condition fails or becomes impossible, the contract immediately resolves to No. The combination requires precise alignment between both headline and core outcomes as defined in each market rule.

Frequently asked questions

On Kalshi, the dashboard for the October 2026 CPI market tracks the current implied probabilities for different CPI outcomes, along with the trading volume and price history. You can view how the market is pricing various scenarios for both the headline and core CPI figures. Currently, the total volume for this market is $16,623, and the 24-hour volume is $702. This provides a real-time view of where traders stand on inflation expectations as we approach October 2026. The dashboard updates continuously as new trades are placed.

Currently, prediction market odds reflect a different perspective than many traditional analyst forecasts for inflation. While many economists predict a continued moderation in inflation, this market’s pricing may indicate a higher probability of a different outcome. It’s important to remember that analysts often rely on economic models and historical data, while this market incorporates the collective judgment of a diverse group of traders. Discrepancies can arise due to differing assumptions, risk appetites, and access to information. Examining these differences can provide valuable insight into the range of possible scenarios.

On Kalshi, this market is priced through a continuous double auction, meaning traders buy and sell contracts representing different CPI outcomes. The price of each contract reflects the market’s implied probability of that outcome occurring. As more traders participate, the prices adjust to reflect the collective expectation. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market depth and volume indicate the level of confidence traders have in various scenarios. Traders are constantly adjusting their positions based on new information and their own analysis, leading to dynamic price fluctuations. This creates a real-time assessment of inflation expectations.

This market resolves around Nov 10, 2026, with the outcome confirmed once the official October 2026 Consumer Price Index (CPI) data is released and verifiable from credible public reporting. The resolution will be based on the reported month-over-month change for both the headline CPI and the core CPI, as published by the Bureau of Labor Statistics. The market will determine which outcome aligns with the reported data, and payouts will be distributed accordingly to those who correctly predicted the CPI change. Traders should monitor official announcements for the definitive resolution.

Several key signals and events could significantly impact this market. Unexpected economic data releases, such as employment reports or producer price index (PPI) figures, could shift expectations about future inflation. Geopolitical events, like major supply chain disruptions or shifts in global energy prices, could also play a role. Furthermore, statements from the Federal Reserve regarding monetary policy, including potential interest rate adjustments, will be closely watched. Any news that alters perceptions of economic growth or inflationary pressures is likely to cause volatility in this market.