Agriculture giant Bunge's (BG) stock gapped down 10% early Thursday after the company reported a surprise loss and retirement of CEO Alberto Weisser. The grain processor and fertilizer maker's fourth-quarter earnings per share fell 66% to 57 cents, far below consensus of $2.36. Analysts were expecting growth on rising sales in China and more favorable weather conditions. Revenue rose 3.6% to $17.04 billion, well below Wall Street's target of