Board volume holds at $5.0B in 24 hours

DeFi Rate reported $5.0B in prediction-market volume across 9 exchanges over 24 hours, with the headline indicating that volume held at that level.

The update, published Oct 12, 2026, at 9:54 AM ET, also put Democrats at 62% for the Senate and 90% for the House.

Volume and political pricing

The $5.0B figure covers the combined activity of the 9 exchanges. The available summary does not break down volume by exchange or identify how much trading involved the congressional markets.

The Democratic House probability stood 28 percentage points above the Senate probability. Those readings indicate a stronger market assessment for Democrats in the House than in the Senate, rather than equal confidence across both chambers.

Only DeFi Rate’s summary was available; the underlying page text could not be reviewed. Contract terms, individual exchange figures and earlier political probabilities were not provided, limiting conclusions about what drove activity or whether the political outlook had shifted.

What it means for prediction markets

• Volume is an aggregate measure: The $5.0B total does not establish liquidity or trading concentration in any individual contract.
• The chamber gap is substantial: Democrats’ 90% House reading exceeded their 62% Senate reading by 28 percentage points.
• Direction remains unclear: Without earlier probabilities or contract details, the snapshot does not show whether either congressional market was moving toward or away from Democrats.