How is the extension of trading hours going to affect market participants? How should a system trader align with this change? How is the extension of trading hours going to affect market participants? How should a system trader align with this change? How is the extension of trading hours going to affect market participants? Will the backtested strategies work? Karan Dsij / Saturday, February 10, 2024 / Article rating: 3.8 Now with market timing extension, they are worried that their backtest won’t be relevant anymore. Such scenarios always happen.