Stock chartsUsually I speculate in commodities spreads. But of course excess low risk capital is kept in stocks. I am not sure that I understand your question. I am enclosing a picture of a chart from the popular free site Bigcharts.com.
Is this a plot proportional chart of GOOG/AAPL?
Does this show Technical indicators?
Trading the spread you will need to run oscillators on the spread itself. But if you want to know the difference between to securities, and can live with running studies on one at a time. There must be dozens of free sites from brokers that can duplicate this chart.