A new report from blockchain analytics firm Solidus Labs reveals extreme profit concentration on Polymarket, with fewer than 1% of wallets capturing roughly half of all gains in key markets during the December 2025 through February 2026 period—a dynamic that underscores a structural divide between sophisticated traders and the broader base of participants.

Market Context

The findings arrive as prediction markets face increased scrutiny over market structure and governance. Polymarket has emerged as the dominant platform for political and event-based forecasting, with politics markets driving significant volume during the recent election cycle. The platform's upcoming $POLY token airdrop is widely expected to factor trading volume into allocation metrics, potentially incentivizing further activity.

Analysis

According to Solidus Labs' HALO surveillance platform, just 0.55% of profitable maker wallets captured approximately 50% of all gains across Polymarket's politics markets during the study period. Similarly, 0.26% of winning taker wallets accounted for nearly the same profit share. In dollar terms, roughly $8 million of about $16 million in total profits accrued to each of these small cohorts.

The data sharpens a picture already established by academic research. A paper from London Business School and Yale University, previously analyzed by CoinDesk, found that approximately 3% of Polymarket traders drive most price discovery. The Solidus report suggests the winning cohort is even more concentrated than the price-setting minority.

"The participants capturing a disproportionate share of profits are operating in a different league entirely," the report stated, pointing to capital depth, infrastructure, and execution strategies out of reach for most users. The firm noted that concentration does not necessarily imply wrongdoing—some traders are simply more sophisticated, better capitalized, or faster to act on information.

The report also flagged signs of wash trading, with roughly 15% of volume in some markets showing patterns consistent with self-trading or economically neutral positions. Because outcome tokens in a binary prediction market sum to approximately $1.00, a trader could buy YES on both Trump and Harris within the same time window, register volume on each leg, and finish delta-neutral—a trade with no equivalent in traditional finance.

Some of that suspicious volume may represent incentive farming rather than pure manipulation. Polymarket's upcoming token distribution is expected to weigh trading activity into allocation calculations, creating a potential motive for wash trading beyond market positioning.

Key Numbers

- 0.55% — Share of profitable maker wallets capturing 50% of gains on Polymarket politics markets

- 0.26% — Share of winning taker wallets accounting for roughly the same profit share

- $8 million — Approximate profits captured by each small cohort out of ~$16 million total

- 15% — Estimated volume showing wash trading patterns in some markets

- 3% — Traders found to drive price discovery in prior London Business School/Yale research

What to Watch

Market participants should monitor for increased regulatory attention to prediction market structure following these findings. The report's release coincides with Solidus deploying its HALO platform across more than 4,000 markets on Kalshi, Polymarket's largest U.S.-regulated competitor—a commercial relationship that warrants consideration when evaluating the surveillance pitch.

Traders should also track how Polymarket structures its $POLY token distribution, particularly whether volume-based allocation metrics incentivize behavior consistent with wash trading patterns. The platform's growth trajectory and any response to concentration concerns from Polymarket governance will be key data points for market watchers.