Polymarket reformed the settlement method for its five-minute Bitcoin contracts in August, switching from a single snapshot rule to using an average of opening and closing benchmarks. A recent study found that in the initial weeks following the introduction of the averaging rule, previously observed trading patterns on Binance related to contract settlements diminished. The study noted that the previously estimated historical gains of approximately $8.2 million were under the old rules and cannot be used to quantify losses under the current rules.