
Romazes expanded instrument coverage in the QuantConnect/Lean repository by adding support for the Australian Dollar (6A) futures option and introducing expiry rules for several new CME futures currencies. Using C# and leveraging expertise in API development and financial derivatives, Romazes refactored expiry logic to improve mapping accuracy and expiration calculations, directly addressing issues in FOP expiration handling. Comprehensive tests were implemented to validate the new instruments’ behavior, enhancing reliability for both backtesting and live trading. This work deepened the platform’s financial data capabilities, reduced mispricing risk, and enabled broader client access to futures options and currency instruments in quant trading.

December 2025: Expanded instrument coverage in QuantConnect/Lean with AUD 6A futures option support and new futures currencies (6B, 6M, 6J, 6E, 6C). Completed expiry-rule refactoring, added comprehensive tests, and fixed FOP expiration logic. These changes improve mapping accuracy, expiry calculations, and extend backtest/trading readiness for CME futures—driving broader market coverage and lower risk in instrument handling.
December 2025: Expanded instrument coverage in QuantConnect/Lean with AUD 6A futures option support and new futures currencies (6B, 6M, 6J, 6E, 6C). Completed expiry-rule refactoring, added comprehensive tests, and fixed FOP expiration logic. These changes improve mapping accuracy, expiry calculations, and extend backtest/trading readiness for CME futures—driving broader market coverage and lower risk in instrument handling.
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