spy etf rolling chart forward
SPY crashing soon: or so it looks. Rather than direct rate-of-change a re-scaling approach is needed. This can be performed using math using interpolation of prices for a parameter replacing date for one axis, selecting the actual date for the other axis. Or... you can photoshop & rescale the chart segment to get a quick peek instead of a price list, which is fine.
Previous chart showing up-coming crash: flic.kr/p/daxu6H