Stocks prices have bounced back nicely since entering a correction in October. But several commodities have failed to recover along with them, suggesting more trouble may lie ahead for investors. The S&P 500 is up more than 6 percent ever since Oct. 29, when it closed down more than 10 percent from its all-time high reached in late September. But commodities like crude oil, gasoline, copper and platinum are still in a correction or in a bear market — down at least 20 percent from their 52-week highs. Commodities are typically seen as leading indicators for global growth as they are used in everything from ... (full story)