Polymarket Archives

US Elections

Iowa Split: Prediction Markets Back Rob Sand but Favor GOP Senate Hold Ahead of Primary

Prediction markets give Democrat Rob Sand a 64%-66% chance to win Iowa's governor race, while Republicans remain favored to hold the open Senate seat. Here's why traders are pricing the two...

Pat Evans

May 29, 2026

Becerra and Hilton favored in CA governor primary

US Elections

CA Governor Primary Markets Signal Becerra vs Hilton Matchup as Polls Catch Up

The California governor race is turning into what prediction markets have signaled for weeks. The markets have been calling a top two showdown between Democrat Xavier Becerra and...

Pat Evans

May 28, 2026

person looking at computer monitor showing line graph

Legal News & Updates

CFTC Sues Google Employee Over Alleged Insider Trading on Polymarket

The alleged trader used knowledge of Google’s most-searched individuals for 2025 that they had privileged access to and profited $1.2M, according to the CFTC’s complaint....

Derek Helling

May 28, 2026

Kalshi stayed near $4 billion in weekly volume while Polymarket pulled back during the week of May 18.

Volume Report

Prediction Markets Cross $5.6B Week, Kalshi Takes 71% of Volume

Kalshi remained on pace for another monthly volume record during the week of May 18, while Polymarket’s decline widened the gap between the two largest prediction market platforms. Kalshi...

Mike Breen

May 25, 2026

The House Oversight Committee requested internal records from Kalshi and Polymarket as part of an investigation into suspicious prediction market trading

Regulation & Policy

Congress Seeks Kalshi, Polymarket Records Amid ‘Wild West’ Insider Trading Concerns

The House Oversight Committee is seeking internal records that could help identify traders behind suspicious activity, while Chairman James Comer called the regulatory environment for...

Mike Breen

May 22, 2026

Polymarket US is seeking to add parlay-style sports contracts as prediction market operators expand multi-leg trading products

Industry

Polymarket US Self-Certifies Parlay-Style Sports Contracts With CFTC

The 'Combinatoric Athletic Outcome Contract' filing could bring multi-leg sports markets to Polymarket’s regulated U.S. exchange as prediction market operators race to add parlay-style...

Mike Breen

May 21, 2026

US Elections

Trump’s Primary Wave Hits Texas Senate Runoff but Markets Still See Democratic Senate Path

Prediction markets pushed Ken Paxton to dominant odds after President Trump’s endorsement in the Texas Senate runoff, continuing a trend seen in Louisiana and Kentucky while Senate...

Pat Evans

May 21, 2026

Industry

Kalshi, Polymarket Rank No. 43 and 48 on CNBC Disruptor 50 List: Should They Be Higher?

The rankings recognize prediction markets as a category for the first time, and place two $15B+ companies in the bottom fifth of the list. We explore whether they should rank...