S&P 500 gains 2.7% to 1,944; Nasdaq rises 3.4% to 4,679 Related posts: BP boss gets 20% pay rise despite firm’s $6.5B loss RPT-With Havana trip, Obama seeks to make history, lock in Cuba opening BRIEF-StorageVault Canada to buy self storage assets in Calgary S&P 500 up 0.5% Post navigation U.S. stocks extend gains; Dow rises 406 points to 16,277 The McClatchy Company (NYSE: MNI) Update