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Democratic 2028 win odds differ by two points across prediction venues

PolymarketTrader matched 8 events listed on both venues in its November 5 comparison, covering 50 matched outcomes with an average price gap of 1.0 percentage points. The 2028 party market showed a 2.0 point gap between the venues.

Democrats’ chances of winning the 2028 presidential election were priced at 67.5 percent on Polymarket and 65.5 percent on Kalshi, according to PolymarketTrader. The difference put Polymarket 2.0 percentage points above Kalshi.

A broader cross-platform comparison

The party-level presidential market was part of PolymarketTrader’s November 5 comparison of 8 events available on both venues. The reporting was published on Nov 5, 2026, at 7:15 AM ET.

Across those events, PolymarketTrader matched 50 outcomes. The average price difference between the platforms was 1.0 percentage points.

The 2028 party market’s 2.0-point gap was therefore twice the average across the matched outcomes. Both venues nevertheless priced a Democratic victory above 50 percent.

What it means for prediction markets

  • The two venues agreed on the direction of the Democratic outlook but assigned different probabilities: 67.5 percent on Polymarket versus 65.5 percent on Kalshi.
  • The presidential party-market gap exceeded the comparison’s average, making it a larger-than-average difference within this set of matched outcomes.
  • The supplied summary does not include contract terms, liquidity or transaction costs, limiting conclusions about whether the price difference represented an actionable opportunity.
KalshiPolymarketElectionsInfiniti MarketsInfiniti Signals

Sources & attribution

Published
  1. Source
    PolymarketTraderpolymarket.com
    Publisher
    https://polymarket.com
    Source URL
    The feed did not publish this story's article address.

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