Corn Traders Extend Bullish Bets on South America

Corn traders are bullish for a fifth consecutive week on speculation that dry weather in South America is damaging crops, boosting demand for U.S. supplies at a time when stockpiles are predicted to shrink to a 16-year low….  http://www.bloomberg.com/news/2011-12-30/corn-traders-extend-bullish-bets-on-south-america-crop-damage-commodities.html