Kalshi midterm audience exceeded trading participation as study found odds influence

Kalshi’s 2026 midterm markets attracted five viewers for every trader, according to Catenaa, citing figures from Kalshi. The audience extended beyond those participating in the markets.

Total visits reached 50 times the number of traders, Catenaa reported. That is a separate measure from the five-to-one viewer ratio: visits count traffic, while the viewer figure describes the audience relative to traders.

Odds as information

A Brennan Center study of 1,994 voters found that displaying market odds shifted expectations about who would win by up to 20 points, according to Catenaa. The finding concerns expectations of the outcome, not voters’ choices.

Taken together, the audience figures and study highlight two distinct aspects of election markets: their reach among non-traders and the potential for displayed probabilities to influence how voters assess a race. The supplied summary does not establish that Kalshi’s midterm viewers experienced the effects measured in the study.

What it means for prediction markets

• Audience and participation differ: Kalshi’s five-to-one viewer-to-trader ratio shows that trading activity alone does not capture the reach of its election markets.
• Traffic is not a trader count: Visits running at 50 times the number of traders should not be interpreted as 50 distinct viewers per trader.
• Displayed odds can shape expectations: The Brennan Center finding points to an informational influence, but does not establish forecast accuracy or an effect on voting decisions.