Kalshi Introduces Transparency Features for Election Contracts

Kalshi has launched new transparency features for its election contracts, including volume tags, Brier scores, and live activity feeds. These additions aim to provide traders with more clarity on market activity and accuracy ahead of the midterms.

What Happened

Kalshi has implemented three new features for its election contracts, according to CNBC. These features are designed to enhance transparency regarding the activity and accuracy of its markets. The introduction of these tools comes less than a month before the midterm elections.

The platform will now display tags to identify election markets with low volume, defined by Kalshi as those with less than $10,000. Additionally, Kalshi’s election markets will incorporate Brier scores to assess the accuracy of market probabilities against actual outcomes. A live activity feed feature has also been launched, showcasing individual trades on election contracts in real time.

Key Details

• Kalshi will provide tags for election markets with volumes under $10,000, indicating low activity (CNBC).
• Brier scores will be used to measure the accuracy of market probabilities for Kalshi’s election markets (CNBC).
• An activity feed feature will display individual trades on election contracts live (CNBC).
• Kalshi’s election markets have grown six times faster than its football markets this year, according to CEO Tarek Mansour (CNBC).
• More people are viewing midterm markets than trading them, at a ratio of five to one, based on Kalshi’s internal data (CNBC).

Why It Matters

The introduction of these transparency features addresses concerns from prediction market experts, who have noted that prices in low-volume markets can experience significant fluctuations and wide spreads between buying and selling, as reported by CNBC. By identifying low-volume markets, Kalshi aims to provide traders with crucial information to assess market reliability. The inclusion of Brier scores offers a standardized metric for evaluating the predictive accuracy of the markets, contributing to a more robust assessment of their performance.

Kalshi’s decision to implement these features was influenced by observed trading patterns, specifically a focus among election traders on local races over national ones. CEO Tarek Mansour described the midterms as the “first meaningful prediction market election,” highlighting the substantial growth of the platform’s election markets. The disparity between market viewers and active traders, indicated by a five-to-one ratio, suggests a broad interest in election outcomes that extends beyond direct participation, making enhanced transparency particularly relevant.

What’s Next

Kalshi previously released a “Midterms Hub” in July, allowing public access to traders’ odds on markets related to U.S. Senate and House of Representatives races (CNBC).

Originally reported by CNBC·Published 6 Oct 2026, 18:33