Dow within 100 of 13,000 as stocks barrel higher

NEW YORK — Investors sent U.S. stocks bar­rel­ing to their high­est lev­els of the year Thurs­day, buoyed by sliv­ers of encour­ag­ing news about jobs and hous­ing. At least for a day, they over­looked the lack of clar­ity about Greece’s marathon nego­ti­a­tion for a bailout.