Odaily News Analysts from blockchain firms Chaos Labs and Inca Digital found rampant wash trading on Polymarket, even though its odds had been widely circulated on social media and in mainstream media, and found signs of wash trading in Polymarket's activity, a form of market manipulation in which buys and sells are often done simultaneously and repeatedly to create the illusion of volume and activity. Chaos Labs found that wash trading accounted for about a third of Polymarket's presidential election market volume, while Inca Digital found that "a large portion of the market's volume" could be attributed to potential wash trading. (Fortune)