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House control market leads Polymarket’s $14.0 million in whale activity

Rivo, updated at 5:09 PM ET on November 4, puts Polymarket whale money at 14.0 million dollars across 828 large trades in the last 24 hours. The market on the Democratic Party controlling the House after the 2026 midterms drew the most whale money at 5.4 million dollars across 236 large trades.

Polymarket recorded $14.0 million in whale money across 828 large trades over the last 24 hours, according to Rivo’s update at 5:09 PM ET on November 4, 2026.

House control draws the largest total

The market on whether the Democratic Party would control the House after the 2026 midterms attracted the most whale money. Rivo put its total at $5.4 million across 236 large trades.

That made House control the leading market by the reported dollar measure. The figures describe trading activity, however, rather than the direction of those trades or the market’s implied probability.

A snapshot of large-trade activity

The supplied summary was published on Nov 4, 2026, at 6:15 PM ET. Its figures reflect Rivo’s earlier update and the preceding 24-hour window, not a final tally for the calendar day.

The summary does not specify the threshold for a large trade, the number of distinct traders involved or how the money was distributed between opposing outcomes.

What it means for prediction markets

  • House control led large-trade attention: Its $5.4 million across 236 trades was the largest whale-money total reported by Rivo.
  • Volume is not a directional signal: The figures alone do not establish whether large traders favored or opposed Democratic Party control of the House.
  • Timing limits the snapshot: The totals cover the 24 hours preceding the 5:09 PM ET update on November 4, 2026.
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Sources & attribution

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    Rivo
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