I am looking to backtest 5-10 ETFs using a simple MA. Is there anywhere free I can do that? ETFReplay only seems to do 1 ETF unless you subscribe. That also only has around 10 years of data. I would rely prefer being able to backtest much further (I will be using pretty broad indexes if necessary since ETFs don't go back that far). I am really looking for combinations of small cap, mid cap, sp500, reits, treasuries, commodities, natural resources, emerging, international.