Kalshi’s biggest midterm contract settles on Democratic House control

Kalshi’s House control market totaled 400.6 million dollars and settled for the Democrats, according to Covers, citing Aldrin Research. It was the largest single midterm market on the platform.

Election Day trading reaches 105 million dollars

Election Day accounted for 105 million dollars in trading, according to Covers. That figure formed part of the market’s 400.6 million dollars total.

The contract had been running since shortly after the 2024 election, Covers reported, citing Aldrin Research. Its trading history therefore extended well beyond the immediate midterm election period.

Republicans never became the favorite

Republicans were never favored in the market, according to Covers. The Democratic settlement was thus consistent with the market’s reported directional preference, although the supplied material does not provide individual prices or a detailed probability history.

The report was published on Nov 4, 2026, at 10:45 PM ET. Its figures establish the contract’s scale within Kalshi’s midterm markets, but do not describe activity across other platforms.

What it means for prediction markets

• A platform-specific benchmark: The 400.6 million dollars total made House control Kalshi’s largest single midterm market, according to Covers.
• Substantial Election Day activity: The 105 million dollars traded that day highlights how much activity occurred at the election’s culmination.
• Direction is not calibration: Republicans never being favored is consistent with the Democratic settlement, but assessing the accuracy of the market’s probabilities would require pricing data not supplied here.