House control draws biggest trading volume as Texas Senate attracts millions
CoinStats reports 24-hour volume is led by the Democratic House control market at 19.5 million dollars, followed by the Democratic sweep market at 12.5 million dollars on Kalshi and the Texas Senate race at 10.8 million dollars across Polymarket and Kalshi. Michigan's Senate market, pricing Abdul El-Sayed at 81 percent, traded 4.5 million dollars in the same window.
Trading in Democratic House control led the reported 24-hour volumes at 19.5 million dollars, according to CoinStats. The figures put that market ahead of both the Democratic sweep contract and the Texas Senate race.
The snapshot was published Nov 3, 2026, at 1:45 PM ET. It measures trading activity over a 24-hour window, rather than changes in the markets’ implied probabilities.
National outcomes outpace Texas Senate trading
The Democratic sweep market on Kalshi recorded 12.5 million dollars in volume, according to CoinStats. That placed it second among the markets listed in the summary.
The Texas Senate race generated 10.8 million dollars across Polymarket and Kalshi. It led the individual race markets cited, although its combined-platform total remained below the volumes reported for Democratic House control and a Democratic sweep.
Michigan pairs lower volume with an 81 percent price
Michigan’s Senate market traded 4.5 million dollars during the same window, according to CoinStats. The market priced Abdul El-Sayed at 81 percent.
The supplied figures do not include comparable probability readings for the Texas Senate race, Democratic House control or Democratic sweep markets. They therefore support a comparison of trading activity, but not a broader comparison of electoral expectations.
What it means for prediction markets
- Volume and probability are different signals: The 19.5 million dollars in House-control trading measures activity, not the likelihood of Democratic control.
- Platform coverage matters: Texas’s 10.8 million dollars combines Polymarket and Kalshi, while the 12.5 million dollars for a Democratic sweep is attributed to Kalshi.
- Michigan provides a separate pricing signal: Abdul El-Sayed’s 81 percent reading accompanies 4.5 million dollars in trading, but the summary provides no earlier price to establish a trend.
Sources & attribution
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