By Frank Holmes, CEO and Chief Investment Officer of U.S. Global Investors:

We're heading into September this week, so it's a good time to revisit the historic seasonality of gold and gold stocks.

Over the past four decades, September has been the best time for gold in terms of its month-over-month price appreciation. You can see this on the chart below - in a typical year, the price of gold in September rises 2.5 percent above its August price.

While September is a good month for gold, it is historically a great month for gold stocks as measured by the NYSE Arca Gold Miners Index (GDM)... The GDM index comprises a broader collection of gold miners - including more smaller-cap companies - than either the NYSE Arca Gold Bugs Index (HUI) or the Philadelphia Stock Exchange Gold and Silver Index (XAU).

After the typically soft months of June and July, the gold miners start to bounce back with a 2 percent bump in August before shooting up another 8 percent in September. Since 1993, when it was created, the GDM has been up 11 times in September and down just five times.

Read full article with charts...

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