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Kalshi House trading tops $236 million as Democratic odds reach 94%

Oddschecker reports Kalshi's House market opened on May 27 with Democrats at 76 percent and climbed steadily to about 94 percent by November 3, while the Senate control market had drawn about 170 million dollars with Democrats needing a net gain of four seats to take the chamber.

Kalshi’s market on control of the House has surpassed $236 million in trading, making it the exchange’s largest midterm market, according to Oddschecker. The Senate control market has attracted about $170 million.

House odds rise from opening levels

Oddschecker reported that the House market opened on May 27 with Democrats at 76 percent. That probability rose steadily to about 94 percent by November 3.

The figures, reported on Nov 3, 2026, at 1:30 PM ET, show both substantial trading activity and a pronounced shift toward Democrats in the House contract. The probability remains a market assessment, not a confirmed election outcome.

Senate control draws a separate pool of trading

The roughly $170 million traded on Senate control places it behind the House market in volume, according to Oddschecker. Democrats need a net gain of four seats to take the Senate.

The supplied reporting does not give a Senate control probability. Its trading volume therefore provides a measure of activity, but not a basis for comparing the two chambers’ implied chances of Democratic control.

What it means for prediction markets

  • House pricing has shifted materially: Democrats moved from 76 percent at the May 27 opening to about 94 percent by November 3.
  • Volume and probability are distinct: More than $236 million in House trading and about $170 million in Senate trading indicate activity, not certainty about either outcome.
  • The Senate threshold is explicit: Democrats require a net gain of four seats, but the supplied figures do not show how the market prices that prospect.
KalshiSenateMidtermsInfiniti MarketsInfiniti Signals

Sources & attribution

Published
  1. Source
    Oddscheckeroddschecker.com
    Publisher
    https://www.oddschecker.com
    Source URL
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