March 6, 2026 • The 20-something billionaires who run Kalshi and Polymarket are battling it out to be the top prediction market company. Observers and former insiders say the feud is just heating up.

Orr joined IBJ in 2016. She’s been a reporter since 1995 and has worked at four newspapers in three states. Before moving to Indianapolis, she wrote for the Courier & Press in Evansville. When she’s ...