Investors who are crafting a diversified investment portfolio should consider commodity-related exchange traded fund exposure that helps provide non-correlated returns to traditional assets like stocks and bonds.

On the upcoming webcast, The Global Economy: Divergence, Commodities and the Dollar, Mike McGlone, head of U.S. research at ETF Securities, and Helen Henton, director commodities at Roubini Global Economics, discuss how investors should position their commodities exposure in a shifting market environment.

Currently, gold assets, such as the ETFS Physical Swiss Gold Shares (NYSEArca: SGOL), are weakening after the Federal Reserve hinted at a December interest rate hike. The higher interest rates would hurt non-yielding commodities, like gold, and strengthen the U.S. dollar, which would put further pressure on gold demand among foreign buyers since gold is priced in USD.

However, unlike gold, other white metals have strengthened on the improving economic outlook as many other precious metals have industrial applications. For instance, the ETFS Physical Silver Shares (NYSEArca: SIVR) and silver prices were still strengthening Wednesday after the Fed announcement. Silver is used in electronics and batteries.

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.

The opinions and forecasts expressed herein are solely those of Tom Lydon, and may not actually come to pass. Information on this site should not be used or construed as an offer to sell, a solicitation of an offer to buy, or a recommendation for any product.