Commodities: Speculation vs. Fundamentals

2:10 AM ET Tue, 31 May 2011

"There¿s obviously a lot of speculators' activity in the markets, and I think it does influence prices. But that is also, once again, only short term," Walter De Wet, head of commodities research at Standard Chartered Bank, told CNBC. "Ultimately, it does go down to fundamentals, because ultimately, there needs to be a consumer for these commodities."