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%
Time left: 24d:17h:09m
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This set of markets tracks potential movements in the U.S. consumer price index for October 2026, focusing on whether the index will exceed various threshold values. The index measures changes in retail prices paid by urban consumers for a basket of goods and services, serving as a key indicator of inflation.
All markets in this event are resolved based on the Consumer Price Index for All Urban Consumers (CPI-U), specifically the U.S. city average for All items, not seasonally adjusted, with the base year 1982–84 set to 100, for the month of October 2026. The resolving authority is the Bureau of Labor Statistics (BLS), and the relevant data is found in the Consumer Price Index News Release Table 1 for October 2026. For each market, a 'Yes' outcome occurs if the published 'All items' value under the 'Unadjusted indexes' column exceeds the specified threshold (e.g., above 334.200, above 334.300, etc.). The value used for resolution is the first official publication in the scheduled CPI release for October 2026; any subsequent revisions to the data do not alter the market outcome. Thresholds progressively increase across markets, allowing participants to assess the likelihood of inflation reaching various levels by the end of October 2026.
Currently, prediction market odds reflect a different view than many traditional analyst forecasts regarding the October CPI. While some analysts predict a continued slowdown in inflation, this market suggests a more nuanced expectation. It's important to remember that prediction markets represent the collective wisdom of a diverse group of traders, potentially incorporating information not fully captured in standard economic models. This dynamic can lead to divergences between market-based predictions and those from conventional sources, offering a unique perspective on potential economic outcomes.
On Kalshi, this market is priced using a continuous double auction mechanism, where traders submit bids and offers for contracts representing different CPI outcomes. The price of a contract reflects the probability of that outcome occurring, as perceived by the market participants. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market price adjusts dynamically based on supply and demand, providing a real-time assessment of inflation expectations. Traders aim to profit by correctly predicting the actual CPI release, and the market aggregates their collective insights into a forward-looking forecast.
This market resolves around Nov 17, 2026, with the outcome confirmed once the official CPI-U index for October is verifiable from credible public reporting. The Bureau of Labor Statistics (BLS) releases this data, and the market will settle based on that official figure. Traders will be able to see the final settlement price and determine whether their predictions were accurate. The resolution process ensures a transparent and objective determination of the market's outcome, based on publicly available economic data.
Several signals or events could significantly move this market before resolution. Unexpected economic data releases, such as employment numbers or producer price index (PPI) figures, could shift expectations about future inflation. Geopolitical events or supply chain disruptions could also impact prices and influence trading activity. Furthermore, statements from the Federal Reserve regarding monetary policy, or changes in energy prices, are likely to cause fluctuations in this market. Any news that alters the perceived trajectory of inflation will likely be reflected in the trading prices.