I did a recent post here and over on ZeroHedge which got a lot of views based on the SPY/GLD ratio. Some readers pointed out something that hadn’t occurred to me before: the ETF GLD didn’t even exist until November 2004, which means the ratio is really only valid starting on that day. (SPY, on the other hand, the first ETF, was created early in 1993).
I assumed incorrectly that ProphetCharts would only begin charting a ratio at the most recent start day for any symbol used. I assumed wrong. This would normally be excusable were it for not one inconvenient truth:


