Gold Stocks poor performance over the last 40 years is mostly a reflection of precious metals being in a secular bull market for only one fourth of those years. Historically, other than in the mid 1960s, gold stocks best performance was during periods when the stock market was in a secular bear. Gold stocks performed very well from 1964 to 1968 but the stock market only trended higher slightly during those years.
Whenever the stock market begins a secular bear, and it may have already started, precious metals will be primed for a real bull market. In that scenario gold stocks will trend higher consistently for at least a decade.