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%

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Economics
CPI-U index in August
kalshi

CPI-U index in August

Aug 16, 2026, 3:00 PM EST - Sep 18, 2026, 10:00 AM EST
Total volume:
$100,011
Volume 24h:
$3,842
3%
Liquidity:
N/AN/A
Open interest:
$57,188
3%

Above 334.400

 - Kalshi

Above 334.400 - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Sep 18, 2026

Time left: 08d:04h:55m

Will Consumer Price Index for All Urban Consumers: U.S. city average, All items, not seasonally adjusted, 1982–84=100 for August 2026 be above 334.400?

98%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 100¢ buys you 100 shares | Odds: 98% Total Payout: $100 | Net Profit: $0 Multiplier: 1.00x | ROI: 0% | APY: 0% Illiquid market 8 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

Above 334.400

Trade
98%
1%
Yes 100¢No 74¢
74¢
N/A
$5,015
9%
9%
$4,865
1w 1d 4h
active
kalshi

Above 334.450

98%
Yes 100¢No 72¢
72¢
N/A
$2,525
0%
0%
$1,077
1w 1d 4h
active
kalshi

Above 334.300

97%
Yes 100¢No 40¢
40¢
N/A
$7,156
0%
9%
$5,032
1w 1d 4h
active
kalshi

Above 334.350

97%
Yes 100¢No 100¢
100¢
N/A
$3,667
0%
0.14%
$3,187
1w 1d 4h
active
kalshi

Above 334.600

95%
Yes 100¢No 77¢
77¢
N/A
$807
0%
1%
$161
1w 1d 4h
active
kalshi

Above 334.550

94%
Yes 100¢No 73¢
73¢
N/A
$331
0%
3%
$319
1w 1d 4h
active
kalshi

Above 334.500

85%
Yes 100¢No 71¢
71¢
N/A
$2,563
0%
0%
$1,481
1w 1d 4h
active
kalshi

Above 334.650

83%
Yes 100¢No 74¢
74¢
N/A
$3,623
0%
0%
$2,125
1w 1d 4h
active
kalshi

Above 334.700

80%
Yes 100¢No 77¢
77¢
N/A
$6,390
0%
0%
$2,443
1w 1d 4h
active
kalshi

Above 334.750

70%
7%
Yes 79¢No 45¢
24¢
N/A
$10,112
4%
104%
$5,903
1w 1d 4h
active
kalshi

Above 334.800

63%
8%
Yes 63¢No 38¢
N/A
$8,463
8%
16%
$2,250
1w 1d 4h
active
kalshi

Above 334.850

51%
Yes 53¢No 58¢
11¢
N/A
$7,396
0%
7%
$3,279
1w 1d 4h
active
kalshi

Above 334.900

35%
Yes 73¢No 65¢
38¢
N/A
$3,642
0%
6%
$1,589
1w 1d 4h
active
kalshi

Above 334.950

32%
7%
Yes 73¢No 73¢
46¢
N/A
$355
255%
0%
$355
1w 1d 4h
active
kalshi

Above 335.100

21%
Yes 68¢No 93¢
61¢
N/A
$750
0%
0%
$205
1w 1d 4h
active
kalshi

Above 335.150

14%
Yes 75¢No 95¢
70¢
N/A
$293
0%
14%
$58
1w 1d 4h
active
kalshi

Above 335.050

12%
3%
Yes 77¢No 100¢
77¢
N/A
$979
104%
104%
$739
1w 1d 4h
active
kalshi

Above 335.300

11%
Yes 76¢No 100¢
76¢
N/A
$100
0%
0%
N/A
1w 1d 4h
active
kalshi

Above 335.000

10%
10%
Yes 67¢No 100¢
67¢
N/A
$2,594
58%
87%
$1,403
1w 1d 4h
active
kalshi

Above 335.500

6%
Yes No 100¢
N/A
$16,866
0%
0%
$9,423
1w 1d 4h
active
kalshi

Above 335.400

4%
Yes 84¢No 100¢
84¢
N/A
$202
0%
0%
$101
1w 1d 4h
active
kalshi

Above 335.450

1%
Yes No 100¢
N/A
$13,190
0%
23%
$8,735
1w 1d 4h
active
kalshi

Above 335.350

1%
Yes 25¢No 100¢
25¢
N/A
$2,993
34%
44%
$2,459
1w 1d 4h
active
kalshi

Above 335.200

N/A
N/A
76¢
N/A
N/A
N/A
N/A
N/A
1w 1d 4h
active
kalshi

Above 335.250

N/A
N/A
73¢
N/A
N/A
N/A
N/A
N/A
1w 1d 4h
active
Total markets: 25

Description

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.

Kalshi

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.

Frequently asked questions

On Kalshi, the dashboard for the August CPI-U market tracks the current odds and price history for this event, along with 24-hour volume of $3,842. It shows how traders on Kalshi are pricing the probability of different outcomes for the August Consumer Price Index – Urban Consumer (CPI-U) data release.

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.