Polymarket Enlists Chainalysis: On-Chain Sleuths Guard Markets

by

It is a matter of no small consequence, that in the present theatre of information and speculation, Polymarket shall align itself with the eminent Chainalysis for the purpose of on-chain surveillance-an endeavour to detect insider trading and manipulative arts-as volumes assume the grand figure of seven billion dollars monthly and the magistrates of regulation sharpen their quills.

insider trading, in addition to all types of fraud and market manipulation, is not welcome on Polymarket, and those who attempt it will be identified,” thus presenting the platform as a trial case for what “market integrity can look like in an on-chain world.”

The deployment of Chainalysis follows a March update wherein Polymarket published enhanced Market Integrity Rules and highlighted a “multi-layered monitoring system” on its Polygon-based DeFi venue, where all contract holders and their positions are publicly viewable and suspicious activity can trigger reviews, bans, and referrals to law enforcement.

Upgrade, volumes, and pUSD collateral

The integrity rollout coincides with Polymarket’s April 28 exchange-stack upgrade, internally described as its “most significant overhaul” to date, introducing CTF Exchange V2 smart contracts, a rewritten central limit order book engine, and Polymarket USD (pUSD) as a new collateral token.

According to Polymarket’s documentation, pUSD is “a standard ERC-20 token on Polygon, backed 1:1 by USDC,” with the backing “enforced on-chain by the smart contract-no algorithmic peg, no fractional reserve,” while all trading still settles in native USDC to improve capital efficiency at the settlement layer.

The platform is migrating from bridged USDC.e toward pUSD issued directly against Circle’s USDC, a shift Polymarket asserts is designed to reduce failed trades, lower gas costs, and improve order management, with most users guided by a one-time approval prompt and API traders obliged to reconfigure clients for the new contracts.

Against a backdrop of meteoric growth, Polymarket posted a fresh all-time daily volume record of approximately $425 million on February 28, eclipsing its prior peak from the 2024 U.S. election, while February’s total volume exceeded $7 billion-roughly a 7.5-fold year-over-year ascent, according to on-chain analytics cited by several research firms.

Regulatory and compliance pressure around prediction markets grows more acute as well, with recent analyses suggesting that by early 2026, Polymarket and Kalshi would be laying down fresh insider-trading controls and governance restrictions as the broader sector scaled toward about $21 billion in monthly volume, making robust surveillance a prerequisite for institutional participation.

Read More

2026-04-30 18:15