Also making significant advances were Advanced Micro Devices (AMD, +6.3%), Micron (MU, +6.8%) and Qualcomm (QCOM, +4.8%). Stocks soared at the open Tuesday after Russian President Vladimir Putin said Moscow had begun to withdraw some troops from the Ukrainian border – raising hopes that military conflict between the two countries might yet be avoided. Also in focus today was the latest inflation update, with the Labor Department reporting the producer price index – which measures how much suppliers are charging businesses for goods – rose a seasonally adjusted 1% month-over-month in January.