TOTAL VOLUME:
$124b
24H VOL:
$82,345,145
24H TRANSACTIONS:
2,121,338,658
OPEN INTEREST:
$1,285,568,173
364,467
Markets across
33,191
events
MATCHED EVENTS:
3,073
PLATFORM COVERAGE:
5
Polymarket:
41%
VS.
Kalshi:
59%
Time left: 08d:04h:55m
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This event tracks potential changes in the cost of living by monitoring a key economic indicator for a specific month and year. The outcome depends on whether the published value exceeds certain thresholds, reflecting broader economic trends and inflation expectations.
All markets in this event series 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 period set to 1982–84=100, for the month of August 2026. The resolving authority is the Bureau of Labor Statistics (BLS), and the relevant data is found in their Consumer Price Index News Release Table 1. For each market, a specific threshold is defined; if the published 'All items' value under the 'Unadjusted indexes' column for August 2026 exceeds that threshold, the market resolves to Yes; otherwise, it resolves to No. Crucially, only the first published value in the scheduled August 2026 CPI release is considered — subsequent revisions, whether upward or downward, do not alter the resolution outcome. This ensures consistency and finality in market settlement, as participants rely on the initial official release for their decisions. The structure allows for a range of threshold-based markets, each testing different levels of inflationary pressure within the same underlying data set.
Compared to traditional analyst forecasts, this market often reflects a more nuanced view of market expectations. While analysts may provide a central estimate, traders on Kalshi continuously adjust their positions based on new economic data, Fed communications, and market sentiment, which can lead to odds that diverge from or confirm consensus forecasts.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, this market is priced through a continuous order book where traders submit bids and asks. The current implied probability reflects the collective assessment of all participants, with liquidity indicated by volume of $100,011. Traders can also influence pricing through large orders that shift the market price.
This market resolves around Sep 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The final CPI-U figure for August, as published by the U.S. Bureau of Labor Statistics, will determine which market outcome is settled. Timing depends on the official data release schedule.
Key signals that could move this market include preliminary economic indicators such as monthly jobs reports, inflation-related speeches from Federal Reserve officials, and any unexpected shifts in energy or commodity prices. Major geopolitical developments or sudden changes in consumer spending patterns can also cause rapid re-pricing as traders adjust their expectations ahead of the final data release.