Jan 04, 2019
ETFreplay uses GOOGL. The basic reason is that when Google did its split, the original GOOG became GOOGL (the price history of GOOG became GOOGL and there was a newly formed A class share with no price history -- GOOG). So in order to backtest GOOG you really should use GOOGL. Since ETFreplay.com is a backtesting website, we use GOOGL and not GOOG