Board volume slips to $5.0B in 24 hours

Prediction-market trading volume totaled $5.0B over 24 hours across 9 exchanges, according to DeFi Rate. The reported total marked a decline, although the supplied summary did not include a comparison figure.

Trading activity and political odds

The update, published Oct 12, 2026 at 8:54 AM ET, provided an aggregate volume figure without a breakdown by exchange or individual market.

According to DeFi Rate, Democrats stood at 62% in the Senate market and 90% in the House market. Those readings put the House probability 28 percentage points above the Senate probability.

The source page text was unavailable. The supplied summary did not specify the political contracts’ settlement terms or earlier probabilities, limiting conclusions about how those markets had moved.

What it means for prediction markets

• The $5.0B figure describes activity across 9 exchanges, not the volume or liquidity available in any particular contract.
• The reported probabilities favor Democrats more strongly in the House market than in the Senate market, but they are not guarantees of either outcome.
• Without prior readings or market-level volume data, the update does not establish a connection between the volume decline and political repricing.