The Prediction Markets

Market comparison

How many House seats will the Democrats win in Texas?

2 venues · 8 outcome rows · 8 comparable lines · event identity linked · 0 verified parity · active

8 outcomes · $56K reported volume

Observed 26s ago

Recorded venue end date: Jan 3, 2027

Polymarket

Open venue ↗

8 outcomes · $19K reported volume

Observed 26s ago

Recorded venue end date: Nov 4, 2026

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.

Known rule differences between venues

  • Seat counts depend on when races are called; venues use different settlement deadlines for uncalled seats.

A shared identity alone does not make a price difference executable.

8

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

8

Open Kalshi ↗

Polymarket

1.1%

Bid 1.0% · Ask 1.2%

8

Open Polymarket ↗

Price difference 0.9 pp

9

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

6.5%

Bid 3.8% · Ask 6.5%

9

Open Kalshi ↗

Polymarket

6.5%

Bid 6.0% · Ask 7.0%

9

Open Polymarket ↗

Price difference 0.0 pp

10

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

11.0%

Bid 8.9% · Ask 14.0%

10

Open Kalshi ↗

Polymarket

12.0%

Bid 11.0% · Ask 13.0%

10

Open Polymarket ↗

Price difference 1.0 pp

11

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

17.0%

Bid 17.0% · Ask 21.0%

11

Open Kalshi ↗

Polymarket

19.5%

Bid 18.0% · Ask 21.0%

11

Open Polymarket ↗

Price difference 2.5 pp

12

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

24.0%

Bid 22.0% · Ask 24.0%

12

Open Kalshi ↗

Polymarket

23.0%

Bid 22.0% · Ask 24.0%

12

Open Polymarket ↗

Price difference 1.0 pp

13

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

27.0%

Bid 23.0% · Ask 27.0%

13

Open Kalshi ↗

Polymarket

25.5%

Bid 24.0% · Ask 27.0%

13

Open Polymarket ↗

Price difference 1.5 pp

14 and above

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

14.0%

Bid 13.0% · Ask 14.0%

14 and above

Open Kalshi ↗

Polymarket

15.0%

Bid 14.0% · Ask 16.0%

14+

Open Polymarket ↗

Price difference 1.0 pp

Below 8

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

2.3%

Bid 0.0% · Ask 3.8%

Below 8

Open Kalshi ↗

Polymarket

3.0%

Bid 0.9% · Ask 5.1%

<8

Open Polymarket ↗

Price difference 0.7 pp

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