CNBC's Mandy Drury reports the U.S. markets are up after U.S. jobless claims hold steady at a 4-year low. Sears shares surge as investors cheer its revamp scheme. HP, on the other hand, sees profit tumble 44 percent. Boston Beer shares are also lower on a lackluster 2012 earnings outlook. And JD Power raises 2012 U.S. auto sales forecast.