Additionally, both ETFS Physical Palladium Shares (NYSEArca: PALL) and ETFS Physical Platinum Shares (NYSEArca: PPLT) have been gaining on increased automobile sales. Palladium and platinum are used in gasoline- and diesel-engine catalytic converters. [Palladium ETF Surges to Two-Month High]

Investors who want a more diversified approach to precious metals can also take a look at the ETFS Physical Precious Metals Basket Shares (NYSEArca: GLTR) and ETFS Physical White Metals Basket Share (NYSEArca: WITE).

GLTR tracks the four precious metals, including gold 57.9%, silver 28.8%, palladium 6.8% and platinum 6.6%. WITE, on the other hand, only focuses on the white metals, including silver 50.7%, platinum 31.8% and palladium 17.5%.

Financial advisors who are interested in learning more about the precious metals market can register for the Thursday, September 29 webcast here.