Polymarket Traders' Unlikely Winning Streak Sparks Insider Trading Fears

A cluster of Polymarket accounts won an astonishing 41 out of 42 bets on company earnings results, according to The Wall Street Journal. All 18 companies involved were audited by KPMG.

The cluster, which spanned several months and began in November 2025, returned roughly $22,000 in profits. Among the companies involved were Wells Fargo, DoorDash, General Mills, and Home Depot.

Bubblemaps, a blockchain data firm, traced 19 connected accounts with a 98% win rate on KPMG-audited names.