The Prediction Markets

Market comparison

Wisconsin Attorney General winner?

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

2 outcomes · $24K reported volume

Observed 27s ago

Recorded venue end date: Nov 3, 2027

Polymarket

Open venue ↗

5 outcomes · $1K reported volume

Observed 3m ago

Recorded venue end date: Nov 3, 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

  • Kalshi settles on the party of the officeholder sworn in/inaugurated for the new term; Polymarket settles on the party of the called winner. They differ if the winner dies, withdraws or is not seated before the term starts.
  • Independents: Polymarket assigns a non-affiliated winner by stated caucus (House) or excludes independents from party options (Senate/Governor); Kalshi requires party membership.
  • Kalshi may close early on a media-consensus projection; Polymarket resolves on consensus calls with certification as the fallback.

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

Democratic

Partial parity

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

Kalshi

82.0%

Bid 81.0% · Ask 82.0%

Josh Kaul

Open Kalshi ↗

Polymarket

81.0%

Bid 80.0% · Ask 82.0%

Josh Kaul (D)

Open Polymarket ↗

Price difference 1.0 pp

Republican

Partial parity

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

Kalshi

17.0%

Bid 16.0% · Ask 17.0%

Eric Toney

Open Kalshi ↗

Polymarket

18.0%

Bid 17.0% · Ask 19.0%

Eric Toney (R)

Open Polymarket ↗

Price difference 1.0 pp

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