Jerry contributed to the DefiLlama/dimension-adapters repository by developing a Speed Trading feature that tracks daily trading volume and associated fees for both opened and closed trades. Using TypeScript and focusing on backend development, Jerry implemented two adapters to retrieve trading data and calculate fees, thereby enhancing the accuracy and reliability of analytics pipelines. The work emphasized maintainability and testability through an adapter-based design, ensuring clear data lineage. Jerry also addressed a bug in trading volume calculation by correcting the position size map key and updating exit price logic, resulting in more precise metrics for business decisions and partner revenue attribution.