Infiniti FeedOct 31, 2026 · 11:30 AM ET

Republican Senate swing-state sweepout outcome climbs to 23 percent on Polymarket

The market is the most traded prediction market on October 31 and the biggest non-sports market on the board. The None outcome rose from 1 percent to 23 percent over seven days.

The “None” outcome in Polymarket’s market on which Senate swing states Republicans will win reached 23 percent, according to DeFi Rate. That was up from 1 percent over seven days, a rise of 22 percentage points.

Trading activity leads the board

The market recorded $3.6 million in trading over 24 hours, according to DeFi Rate. It was the most traded prediction market on October 31 and the largest non-sports market on the board.

The figures were reported as of Oct 31, 2026, at 11:30 AM ET. The seven-day move marked a substantial repricing of the outcome that Republicans win none of the Senate swing states covered by the market.

Limits of the available information

The supplied summary does not identify the states included, provide prices for competing outcomes or explain what drove the change. It therefore supports a conclusion about the size of the price move and trading activity, but not its cause.

What it means for prediction markets

The “None” outcome moved from 1 percent to 23 percent in seven days, a 22-percentage-point increase—not a 22 percent increase.
The $3.6 million in 24-hour trading reflects activity across the market; the summary does not specify how much was traded on “None.”
Without the state list, resolution rules or other outcome prices, the reported move offers only a partial view of how traders are pricing Republican Senate prospects.

PolymarketSenateInfiniti MarketsInfiniti Signals

Sources & attribution

Published: Oct 31, 2026 · 11:30 AM ET

Source
DeFi Ratedefirate.com
Publisher
https://defirate.com
Source URL
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Republican Senate swing-state sweepout outcome climbs to 23 percent on Polymarket

Trading activity leads the board

Limits of the available information

What it means for prediction markets

Sources & attribution

Related

Trading activity leads the board

Limits of the available information

What it means for prediction markets