Market comparison

CPI-U index in October

2 venues · 52 outcome rows · 0 comparable lines · 0 verified parity · active

Kalshi

Open venue ↗

35 outcomes · $12K reported volume

Observed 40s ago

Recorded venue end date: Nov 10, 2026

Polymarket

Open venue ↗

17 outcomes · $14K reported volume

Observed 40s ago

Recorded venue end date: Nov 11, 2026

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

No shared outcome identities or comparable outcome lines are available for this event. Each venue’s outcomes are listed separately.

Available outcome prices by venue for CPI-U index in October
Outcome	Kalshi	Polymarket	Difference
0.0% Not aligned No persisted outcome identity connects these venue contracts.	—	3.6% Bid 2.0% · Ask 5.3% ≤0.0% Open Polymarket ↗	—
0.1% Not aligned No persisted outcome identity connects these venue contracts.	—	18.5% Bid 16.0% · Ask 21.0% 0.1% Open Polymarket ↗	—
0.2% Not aligned No persisted outcome identity connects these venue contracts.	—	37.5% Bid 35.0% · Ask 40.0% 0.2% Open Polymarket ↗	—
0.3% Not aligned No persisted outcome identity connects these venue contracts.	—	32.5% Bid 31.0% · Ask 34.0% 0.3% Open Polymarket ↗	—
0.4% Not aligned No persisted outcome identity connects these venue contracts.	—	12.5% Bid 10.0% · Ask 15.0% 0.4% Open Polymarket ↗	—
0.5% Not aligned No persisted outcome identity connects these venue contracts.	—	2.1% Bid 0.6% · Ask 3.7% 0.5% Open Polymarket ↗	—
0.6%+ Not aligned No persisted outcome identity connects these venue contracts.	—	0.4% Bid 0.2% · Ask 0.6% 0.6%+ Open Polymarket ↗	—
2.2% Not aligned No persisted outcome identity connects these venue contracts.	—	1.1% Bid 0.3% · Ask 1.9% ≤2.2% Open Polymarket ↗	—
2.3% Not aligned No persisted outcome identity connects these venue contracts.	—	1.4% Bid 0.2% · Ask 2.5% 2.3% Open Polymarket ↗	—
2.4% Not aligned No persisted outcome identity connects these venue contracts.	—	1.4% Bid 0.2% · Ask 2.5% 2.4% Open Polymarket ↗	—
2.5% Not aligned No persisted outcome identity connects these venue contracts.	—	2.0% Bid 0.3% · Ask 3.7% 2.5% Open Polymarket ↗	—
2.6% Not aligned No persisted outcome identity connects these venue contracts.	—	78.0% Bid 77.0% · Ask 79.0% 2.6% Open Polymarket ↗	—
2.7% Not aligned No persisted outcome identity connects these venue contracts.	—	6.0% Bid 1.8% · Ask 10.2% 2.7% Open Polymarket ↗	—
2.8% Not aligned No persisted outcome identity connects these venue contracts.	—	0.5% Bid 0.1% · Ask 1.0% 2.8% Open Polymarket ↗	—
2.9% Not aligned No persisted outcome identity connects these venue contracts.	—	0.5% Bid 0.1% · Ask 1.0% 2.9% Open Polymarket ↗	—
3.0% Not aligned No persisted outcome identity connects these venue contracts.	—	13.6% Bid 11.8% · Ask 15.4% 3.0% Open Polymarket ↗	—
3.1% Not aligned No persisted outcome identity connects these venue contracts.	—	0.7% Bid 0.1% · Ask 1.2% ≥3.1% Open Polymarket ↗	—
Above 334.200 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.200 Open Kalshi ↗	—	—
Above 334.300 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.300 Open Kalshi ↗	—	—
Above 334.400 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.400 Open Kalshi ↗	—	—
Above 334.500 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.500 Open Kalshi ↗	—	—
Above 334.600 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.600 Open Kalshi ↗	—	—
Above 334.700 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.700 Open Kalshi ↗	—	—
Above 334.800 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.800 Open Kalshi ↗	—	—
Above 334.900 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 334.900 Open Kalshi ↗	—	—
Above 335.000 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 335.000 Open Kalshi ↗	—	—
Above 335.100 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 335.100 Open Kalshi ↗	—	—
Above 335.200 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 335.200 Open Kalshi ↗	—	—
Above 335.300 Not aligned No persisted outcome identity connects these venue contracts.	95.0% Bid 95.0% · Ask 100.0% Above 335.300 Open Kalshi ↗	—	—
Above 335.400 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 0.0% · Ask 100.0% Above 335.400 Open Kalshi ↗	—	—
Above 335.500 Not aligned No persisted outcome identity connects these venue contracts.	94.0% Bid 0.0% · Ask 100.0% Above 335.500 Open Kalshi ↗	—	—
Above 335.600 Not aligned No persisted outcome identity connects these venue contracts.	95.0% Bid 95.0% · Ask 100.0% Above 335.600 Open Kalshi ↗	—	—
Above 335.700 Not aligned No persisted outcome identity connects these venue contracts.	93.0% Bid 0.0% · Ask 100.0% Above 335.700 Open Kalshi ↗	—	—
Above 335.800 Not aligned No persisted outcome identity connects these venue contracts.	94.0% Bid 90.0% · Ask 100.0% Above 335.800 Open Kalshi ↗	—	—
Above 335.900 Not aligned No persisted outcome identity connects these venue contracts.	94.0% Bid 0.0% · Ask 100.0% Above 335.900 Open Kalshi ↗	—	—
Above 336.000 Not aligned No persisted outcome identity connects these venue contracts.	56.0% Bid 56.0% · Ask 95.0% Above 336.000 Open Kalshi ↗	—	—
Above 336.100 Not aligned No persisted outcome identity connects these venue contracts.	51.0% Bid 51.0% · Ask 94.0% Above 336.100 Open Kalshi ↗	—	—
Above 336.200 Not aligned No persisted outcome identity connects these venue contracts.	51.0% Bid 51.0% · Ask 94.0% Above 336.200 Open Kalshi ↗	—	—
Above 336.300 Not aligned No persisted outcome identity connects these venue contracts.	90.0% Bid 90.0% · Ask 100.0% Above 336.300 Open Kalshi ↗	—	—
Above 336.400 Not aligned No persisted outcome identity connects these venue contracts.	95.0% Bid 30.0% · Ask 100.0% Above 336.400 Open Kalshi ↗	—	—
Above 336.500 Not aligned No persisted outcome identity connects these venue contracts.	16.0% Bid 16.0% · Ask 90.0% Above 336.500 Open Kalshi ↗	—	—
Above 336.600 Not aligned No persisted outcome identity connects these venue contracts.	86.0% Bid 0.0% · Ask 100.0% Above 336.600 Open Kalshi ↗	—	—
Above 336.700 Not aligned No persisted outcome identity connects these venue contracts.	57.0% Bid 15.0% · Ask 99.0% Above 336.700 Open Kalshi ↗	—	—
Above 336.800 Not aligned No persisted outcome identity connects these venue contracts.	54.5% Bid 10.0% · Ask 99.0% Above 336.800 Open Kalshi ↗	—	—
Above 336.900 Not aligned No persisted outcome identity connects these venue contracts.	53.0% Bid 7.0% · Ask 99.0% Above 336.900 Open Kalshi ↗	—	—
Above 337.000 Not aligned No persisted outcome identity connects these venue contracts.	52.0% Bid 5.0% · Ask 99.0% Above 337.000 Open Kalshi ↗	—	—
Above 337.100 Not aligned No persisted outcome identity connects these venue contracts.	51.5% Bid 4.0% · Ask 99.0% Above 337.100 Open Kalshi ↗	—	—
Above 337.200 Not aligned No persisted outcome identity connects these venue contracts.	51.0% Bid 3.0% · Ask 99.0% Above 337.200 Open Kalshi ↗	—	—
Above 337.300 Not aligned No persisted outcome identity connects these venue contracts.	50.5% Bid 2.0% · Ask 99.0% Above 337.300 Open Kalshi ↗	—	—
Above 337.400 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 1.0% · Ask 99.0% Above 337.400 Open Kalshi ↗	—	—
Above 337.500 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 1.0% · Ask 99.0% Above 337.500 Open Kalshi ↗	—	—
Above 337.600 Not aligned No persisted outcome identity connects these venue contracts.	50.0% Bid 1.0% · Ask 99.0% Above 337.600 Open Kalshi ↗	—	—

0.0%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

3.6%

Bid 2.0% · Ask 5.3%

≤0.0%

Open Polymarket ↗

0.1%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

18.5%

Bid 16.0% · Ask 21.0%

0.1%

Open Polymarket ↗

0.2%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

37.5%

Bid 35.0% · Ask 40.0%

0.2%

Open Polymarket ↗

0.3%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

32.5%

Bid 31.0% · Ask 34.0%

0.3%

Open Polymarket ↗

0.4%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

12.5%

Bid 10.0% · Ask 15.0%

0.4%

Open Polymarket ↗

0.5%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

2.1%

Bid 0.6% · Ask 3.7%

0.5%

Open Polymarket ↗

0.6%+

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

0.4%

Bid 0.2% · Ask 0.6%

0.6%+

Open Polymarket ↗

2.2%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

1.1%

Bid 0.3% · Ask 1.9%

≤2.2%

Open Polymarket ↗

2.3%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

1.4%

Bid 0.2% · Ask 2.5%

2.3%

Open Polymarket ↗

2.4%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

1.4%

Bid 0.2% · Ask 2.5%

2.4%

Open Polymarket ↗

2.5%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

2.0%

Bid 0.3% · Ask 3.7%

2.5%

Open Polymarket ↗

2.6%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

78.0%

Bid 77.0% · Ask 79.0%

2.6%

Open Polymarket ↗

2.7%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

6.0%

Bid 1.8% · Ask 10.2%

2.7%

Open Polymarket ↗

2.8%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

0.5%

Bid 0.1% · Ask 1.0%

2.8%

Open Polymarket ↗

2.9%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

0.5%

Bid 0.1% · Ask 1.0%

2.9%

Open Polymarket ↗

3.0%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

13.6%

Bid 11.8% · Ask 15.4%

3.0%

Open Polymarket ↗

3.1%

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

—

Polymarket

0.7%

Bid 0.1% · Ask 1.2%

≥3.1%

Open Polymarket ↗

Above 334.200

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.200

Open Kalshi ↗

Polymarket

—

Above 334.300

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.300

Open Kalshi ↗

Polymarket

—

Above 334.400

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.400

Open Kalshi ↗

Polymarket

—

Above 334.500

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.500

Open Kalshi ↗

Polymarket

—

Above 334.600

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.600

Open Kalshi ↗

Polymarket

—

Above 334.700

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.700

Open Kalshi ↗

Polymarket

—

Above 334.800

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.800

Open Kalshi ↗

Polymarket

—

Above 334.900

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 334.900

Open Kalshi ↗

Polymarket

—

Above 335.000

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 335.000

Open Kalshi ↗

Polymarket

—

Above 335.100

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 335.100

Open Kalshi ↗

Polymarket

—

Above 335.200

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 335.200

Open Kalshi ↗

Polymarket

—

Above 335.300

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

95.0%

Bid 95.0% · Ask 100.0%

Above 335.300

Open Kalshi ↗

Polymarket

—

Above 335.400

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 0.0% · Ask 100.0%

Above 335.400

Open Kalshi ↗

Polymarket

—

Above 335.500

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

94.0%

Bid 0.0% · Ask 100.0%

Above 335.500

Open Kalshi ↗

Polymarket

—

Above 335.600

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

95.0%

Bid 95.0% · Ask 100.0%

Above 335.600

Open Kalshi ↗

Polymarket

—

Above 335.700

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

93.0%

Bid 0.0% · Ask 100.0%

Above 335.700

Open Kalshi ↗

Polymarket

—

Above 335.800

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

94.0%

Bid 90.0% · Ask 100.0%

Above 335.800

Open Kalshi ↗

Polymarket

—

Above 335.900

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

94.0%

Bid 0.0% · Ask 100.0%

Above 335.900

Open Kalshi ↗

Polymarket

—

Above 336.000

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

56.0%

Bid 56.0% · Ask 95.0%

Above 336.000

Open Kalshi ↗

Polymarket

—

Above 336.100

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

51.0%

Bid 51.0% · Ask 94.0%

Above 336.100

Open Kalshi ↗

Polymarket

—

Above 336.200

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

51.0%

Bid 51.0% · Ask 94.0%

Above 336.200

Open Kalshi ↗

Polymarket

—

Above 336.300

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

90.0%

Bid 90.0% · Ask 100.0%

Above 336.300

Open Kalshi ↗

Polymarket

—

Above 336.400

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

95.0%

Bid 30.0% · Ask 100.0%

Above 336.400

Open Kalshi ↗

Polymarket

—

Above 336.500

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

16.0%

Bid 16.0% · Ask 90.0%

Above 336.500

Open Kalshi ↗

Polymarket

—

Above 336.600

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

86.0%

Bid 0.0% · Ask 100.0%

Above 336.600

Open Kalshi ↗

Polymarket

—

Above 336.700

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

57.0%

Bid 15.0% · Ask 99.0%

Above 336.700

Open Kalshi ↗

Polymarket

—

Above 336.800

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

54.5%

Bid 10.0% · Ask 99.0%

Above 336.800

Open Kalshi ↗

Polymarket

—

Above 336.900

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

53.0%

Bid 7.0% · Ask 99.0%

Above 336.900

Open Kalshi ↗

Polymarket

—

Above 337.000

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

52.0%

Bid 5.0% · Ask 99.0%

Above 337.000

Open Kalshi ↗

Polymarket

—

Above 337.100

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

51.5%

Bid 4.0% · Ask 99.0%

Above 337.100

Open Kalshi ↗

Polymarket

—

Above 337.200

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

51.0%

Bid 3.0% · Ask 99.0%

Above 337.200

Open Kalshi ↗

Polymarket

—

Above 337.300

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.5%

Bid 2.0% · Ask 99.0%

Above 337.300

Open Kalshi ↗

Polymarket

—

Above 337.400

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 1.0% · Ask 99.0%

Above 337.400

Open Kalshi ↗

Polymarket

—

Above 337.500

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 1.0% · Ask 99.0%

Above 337.500

Open Kalshi ↗

Polymarket

—

Above 337.600

Not aligned

No persisted outcome identity connects these venue contracts.

Kalshi

50.0%

Bid 1.0% · Ask 99.0%

Above 337.600

Open Kalshi ↗

Polymarket

—

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.

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