Kalshi launched the U.S. election prediction market contract in October after a favorable court ruling, with trading volume exceeding $30 million in just three weeks. It still lags behind Polymarket, which had a trading volume of about $40 million from early January to early February (its first month of presidential betting), and its recent trading volume has exceeded $2 billion.
The Kalshi market believes that Republican candidate Donald Trump leads his Democratic opponent Kamala Harris by 14 percentage points. Reportedly, these odds must only come from U.S. citizens (and permanent residents) as Kalshi's terms and conditions prohibit foreigners from trading on the platform.