Market comparison

CPI core in December 2026

2 venues · 17 outcome rows · 0 comparable lines · 0 verified parity · active

Polymarket

Open venue ↗

12 outcomes · $157K reported volume

Observed 1m ago

Observed 2m ago

Recorded venue end date: Jan 22, 2027

Kalshi

Open venue ↗

11 outcomes · $49K reported volume

Observed 1m ago

Recorded venue end date: Jan 13, 2027

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These venues also report end dates more than 48 hours apart; event identity does not mean the contracts close or settle together. 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 core in December 2026
Outcome	Polymarket	Kalshi	Difference
1.9% Not aligned No persisted outcome identity connects these venue contracts.	27.4% Bid 25.8% · Ask 28.9% ≤1.9% Open Polymarket ↗ 3.2% Bid 1.3% · Ask 5.1% ≤1.9% Open Polymarket ↗	—	—
2.0-2.4% Not aligned No persisted outcome identity connects these venue contracts.	66.5% Bid 64.1% · Ask 68.9% 2.0-2.4% Open Polymarket ↗ 91.0% Bid 89.0% · Ask 93.0% 2.0-2.4% Open Polymarket ↗	—	—
2.5-2.9% Not aligned No persisted outcome identity connects these venue contracts.	0.6% Bid 0.5% · Ask 0.7% 2.5-2.9% Open Polymarket ↗ 4.8% Bid 1.3% · Ask 8.3% 2.5-2.9% Open Polymarket ↗	—	—
3.0-3.4% Not aligned No persisted outcome identity connects these venue contracts.	0.5% Bid — · Ask 1.1% 3.0-3.4% Open Polymarket ↗ 4.7% Bid 1.6% · Ask 7.8% 3.0-3.4% Open Polymarket ↗	—	—
3.5-3.9% Not aligned No persisted outcome identity connects these venue contracts.	0.2% Bid 0.1% · Ask 0.3% 3.5-3.9% Open Polymarket ↗ 0.1% Bid — · Ask 0.1% 3.5-3.9% Open Polymarket ↗	—	—
4.0%+ Not aligned No persisted outcome identity connects these venue contracts.	0.2% Bid — · Ask 0.4% 4.0%+ Open Polymarket ↗ 0.9% Bid 0.7% · Ask 1.1% 4.0%+ Open Polymarket ↗	—	—
Above 0.0% Not aligned No persisted outcome identity connects these venue contracts.	—	95.0% Bid 94.0% · Ask 96.0% Above 0.0% Open Kalshi ↗	—
Above 0.1% Not aligned No persisted outcome identity connects these venue contracts.	—	79.0% Bid 79.0% · Ask 92.0% Above 0.1% Open Kalshi ↗	—
Above 0.2% Not aligned No persisted outcome identity connects these venue contracts.	—	43.0% Bid 41.0% · Ask 51.0% Above 0.2% Open Kalshi ↗	—
Above 0.3% Not aligned No persisted outcome identity connects these venue contracts.	—	18.0% Bid 18.0% · Ask 19.0% Above 0.3% Open Kalshi ↗	—
Above 0.4% Not aligned No persisted outcome identity connects these venue contracts.	—	8.0% Bid 8.0% · Ask 9.0% Above 0.4% Open Kalshi ↗	—
Above 0.5% Not aligned No persisted outcome identity connects these venue contracts.	—	5.0% Bid 4.0% · Ask 5.0% Above 0.5% Open Kalshi ↗	—
Above 0.6% Not aligned No persisted outcome identity connects these venue contracts.	—	2.0% Bid 2.0% · Ask 3.0% Above 0.6% Open Kalshi ↗	—
Above 0.7% Not aligned No persisted outcome identity connects these venue contracts.	—	2.0% Bid 1.0% · Ask 2.0% Above 0.7% Open Kalshi ↗	—
Above 0.8% Not aligned No persisted outcome identity connects these venue contracts.	—	2.0% Bid 1.0% · Ask 2.0% Above 0.8% Open Kalshi ↗	—
Above 0.9% Not aligned No persisted outcome identity connects these venue contracts.	—	2.0% Bid 1.0% · Ask 2.0% Above 0.9% Open Kalshi ↗	—
Above 1.0% Not aligned No persisted outcome identity connects these venue contracts.	—	2.0% Bid 1.0% · Ask 2.0% Above 1.0% Open Kalshi ↗	—

1.9%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

27.4%

Bid 25.8% · Ask 28.9%

≤1.9%

Open Polymarket ↗

3.2%

Bid 1.3% · Ask 5.1%

≤1.9%

Open Polymarket ↗

Kalshi

—

2.0-2.4%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

66.5%

Bid 64.1% · Ask 68.9%

2.0-2.4%

Open Polymarket ↗

91.0%

Bid 89.0% · Ask 93.0%

2.0-2.4%

Open Polymarket ↗

Kalshi

—

2.5-2.9%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.6%

Bid 0.5% · Ask 0.7%

2.5-2.9%

Open Polymarket ↗

4.8%

Bid 1.3% · Ask 8.3%

2.5-2.9%

Open Polymarket ↗

Kalshi

—

3.0-3.4%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.5%

Bid — · Ask 1.1%

3.0-3.4%

Open Polymarket ↗

4.7%

Bid 1.6% · Ask 7.8%

3.0-3.4%

Open Polymarket ↗

Kalshi

—

3.5-3.9%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.2%

Bid 0.1% · Ask 0.3%

3.5-3.9%

Open Polymarket ↗

0.1%

Bid — · Ask 0.1%

3.5-3.9%

Open Polymarket ↗

Kalshi

—

4.0%+

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.2%

Bid — · Ask 0.4%

4.0%+

Open Polymarket ↗

0.9%

Bid 0.7% · Ask 1.1%

4.0%+

Open Polymarket ↗

Kalshi

—

Above 0.0%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

95.0%

Bid 94.0% · Ask 96.0%

Above 0.0%

Open Kalshi ↗

Above 0.1%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

79.0%

Bid 79.0% · Ask 92.0%

Above 0.1%

Open Kalshi ↗

Above 0.2%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

43.0%

Bid 41.0% · Ask 51.0%

Above 0.2%

Open Kalshi ↗

Above 0.3%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

18.0%

Bid 18.0% · Ask 19.0%

Above 0.3%

Open Kalshi ↗

Above 0.4%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

8.0%

Bid 8.0% · Ask 9.0%

Above 0.4%

Open Kalshi ↗

Above 0.5%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

5.0%

Bid 4.0% · Ask 5.0%

Above 0.5%

Open Kalshi ↗

Above 0.6%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 2.0% · Ask 3.0%

Above 0.6%

Open Kalshi ↗

Above 0.7%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Above 0.7%

Open Kalshi ↗

Above 0.8%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Above 0.8%

Open Kalshi ↗

Above 0.9%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Above 0.9%

Open Kalshi ↗

Above 1.0%

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Above 1.0%

Open Kalshi ↗

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

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