round 1_about S&P 500: can we use prices before 2007-01-03?

Hi,:slight_smile: can we use prices before 2007-01-03?

Hi, the backtest period of the Outperform the S&P 500 Index competition is January 2007 - December 2016. Hence, only data from this period is available for research:)

Hi,

No, you cannot. The competition consists in using data from 2006-12-31 to 2017-12-31.