Grant Engelbart is a Portfolio Manager at CLS Investments, a participant in the ETF Strategist Channel.
[related_stories]Sources
http://www.schwab.com/public/schwab/nn/articles/Commodity-ETFs-Spot-and-Futures-Prices
http://www.etf.com/etf-education-center/21027-how-are-commodity-etfs-taxed.html