It appears that a small clique of traders is exerting significant influence over prediction markets, with an even smaller subset accruing the majority of the profits. A recent report by blockchain analytics firm Solidus Labs has shed light on the extreme profit concentration on Polymarket, where less than 1% of wallets are capturing approximately half of all gains in key markets. Between December 2025 and February 2026, a mere 0.55% of profitable maker wallets and 0.26% of winning taker wallets accounted for roughly 50% of the profits, translating to around $8 million out of $16 million in total gains. This phenomenon is consistent with earlier academic findings, which suggested that a small minority of traders drives most price discovery.
The report highlights that this concentration of wealth does not necessarily imply any wrongdoing, but rather that some traders possess superior sophistication, capital, or speed in reacting to market information. However, the sheer scale of the imbalance raises concerns about a structural divide between a small group of advantaged traders and the broader participant base.
The study also identified signs of wash trading, with approximately 15% of volume in certain markets exhibiting patterns consistent with self-trading or economically neutral positions. Solidus Labs notes that this type of trade has no equivalent in traditional finance and may be driven by incentive farming rather than pure manipulation, potentially in anticipation of Polymarket's forthcoming POLY airdrop. As the firm behind the report sells market surveillance platforms, the findings should be viewed with a critical eye, but the underlying data remains verifiable and worthy of consideration.