The rapid trades—all at nearly $5,500—occurred in a single Kalshi market. The prediction market says the trades represent normal activity.

Kalshi code CLEVELAND has launched for Tuesday's Mets-Rangers and Astros-Mariners matchups: which type of Kalshi code it is, where it goes at sign-up, and how the $55 bonus on a $25 deposit works.

The Kalshi code SILIVE55 has launched for Los Angeles Sparks vs. Las Vegas Aces and Golden State Valkyries vs. Portland Fire: which type of Kalshi code it is, where it goes at sign-up, and how the $55 bonus on a $25 deposit works.

Kalshi proposes to offer margin trading for some users. Margin trading is a common tool in the broader financial markets — stocks and bonds, for example — allowing traders to use borrowed funds to purchase more of an asset,

It's the latest move by the company as it and other event contract exchanges seek to gain greater participation by institutional traders.

Chicago Bears QB Caleb Williams is week-to-week after suffering a hamstring strain in Week 2. Despite avoiding a more serious injury, multiple Bears trading markets on Kalshi have taken a hit.

Kalshi has asked the Commodity Futures Trading Commission (CFTC) to let qualified traders use margin on its event contracts, a step the prediction market

The CFTC is reviewing Kalshi's Ether perpetual futures after analysts flagged 47-63% of volume as fixed-price trades with ratios as high as 174x