Sempra Energy ( SRE) numbers lowered at Jefferies. SRE estimates were cut through 2012. Sale of the commodities JV will take away from earnings. Buy rating and new $59 price target. Tyco ( TYC) estimates lowered at Goldman through 2012. Company is facing a higher tax rate. Neutral rating and $44 price target. Unum ( UNM) estimates, target lowered at Citigroup. Shares of UNM now seen reaching $27. Estimates also cut, as the company is facing a challenging macro environment. Buy rating. Wendy's/Arby's ( WEN) numbers boosted at UBS. Shares of WEN now seen reaching $5. Estimates also upped, given better sales trends. Neutral rating. Weight Watchers ( WTW) numbers raised at Citigroup. Shares of WTW now seen reaching $37. Estimates also increased, to match the company's new guidance. Hold rating.