Caitlin Ostroff

A WSJ analysis shows a small number of accounts on Polymarket and Kalshi—often pros using data-driven algorithmic trading—take home most of the winnings.

A WSJ analysis shows a small number of accounts on Polymarket and Kalshi—often pros using data-driven algorithmic trading—take home most of the winnings.

The next chair has said a lot about the Federal Reserve’s independence and role in the economy over the years. Here’s how his views have evolved.

Caitlin Ostroff, Nick Timiraos Sixteen years ago, Kevin Warsh stood before a group of economists in New York City and delivered a speech

The prediction market has flooded social media with deceptive videos by paid creators. ‘Is this just free money?’

In his videos, George Makihara appears to have a lucrative side hustle making bets on Polymarket. In January, the college student posted a video that showed him winning $100,000 on a wager that President Trump would publicly say the word “McDonald's” that month.

The promotion bolstered the perception that Polymarket lets users make fast and easy money.

Read this exciting story from The Wall Street Journal June 22, 2026 issue. In his videos, George Makihara appears to have a lucrative side hustle making bets on Polymarket.

Polymarket has been banned from letting U.S. users trade on its website since 2022. But the company is waging a secret campaign for Americans' attention

Two senators are calling for a federal investigation into Polymarket's social-media promotion of fake bets following The Wall Street Journal 's reporting on the prediction market's deceptive marketing practices.