Tight spread scanner

Surfaces active Polymarket events where the primary Yes token has a relatively narrow bid–ask on the CLOB. Use it to find markets where crossing the spread is cheaper—not as proof of fair value or expected profit.

Not investment advice. Implied price already embeds the crowd's probability; tight spreads only describe execution quality. Presets like "favorites" or "longshots" are price buckets, not signals that the market is wrong.

Scanning Gamma + CLOB…
MarketYes midSpreadSpread % of midVolume (event)Open

HolyPoly is not affiliated with Polymarket. Data can lag or fail; always verify on the venue. Events hub