Retail bettors on Kalshi, a prediction market platform, experienced more than $100 million in losses from parlay bets between January 1 and April 30, 2026, according to Sportico's analysis. A substantial portion of this, at least $35 million, went directly to Kalshi in estimated fees. On April 26 alone, parlay builders on Kalshi lost approximately $4.3 million.
During this four-month period, Kalshi users risked around $800 million on multi-leg wagers, with their losses representing about 15% of that total. This means for every $100 wagered, bettors lost roughly $15. Parlays, a relatively new feature for prediction markets regulated by the CFTC, rapidly grew in popularity on Kalshi. They accounted for less than 3% of Kalshi's total exchange betting volume in early November 2025, but surged to about 22% by April 2026.
The high loss rate on parlays is particularly pronounced for retail users. Isaac Rose-Berman, a professional bettor, commented that for 99% of users, Kalshi functions similarly to a sportsbook, where wagers have a negative expected value. While there's a small group of "sharp" bettors who use advanced modeling to identify and profit from mispriced offers, helping takers occasionally win, the consistent trend is that most retail users lose money, especially on parlays. Kalshi, however, maintains that prediction markets are an investment product, not gambling. Despite the significant losses on Kalshi, the overall dollar amount of parlay losses at traditional sportsbooks in the U.S. during the same period would have been much larger, though no public aggregate data is available.
