Paradigm flags double-counted volumes in Polymarket trading data

Paradigm researchers, led by Storm Slivkoff, have discovered that Polymarket’s trading volume figures, not related to wash trading, have been double-counted on almost every major dashboard. Slivkoff, who is a research partner at Paradigm, said this is because Polymarket’s on-chain data contains redundant blockchain events. Slivkoff claimed that an analysis of Polymarket’s market structure, smart contracts, and event data revealed that the usual approach of summing the platform’s OrderFilled events is the primary reason behind the double-counting. The approach double-counts cash flow (in USD) and the number of traded contracts. For instance, Slivkoff discovered that a simple YES/NO token sale of $4.13 is recorded as volume worth $8.26 because separate OrderFilled events represent the taker side and the maker side of the trade. The researcher emphasizes that volume on such prediction markets should be measured using either the taker side or the maker side, not both. Slivkoff dissects Polymarket’s trade...

https://www.cryptopolitan.com/polymarket-double-counts-figures/