Amazon shares set to spike 15% this year: Analyst By: CNBC.com News January 28, 2016 at 12:55 PM EST Last year's best-performing stock in the S&P 500 has plenty of runway left to soar in 2016, according to S&P Capital IQ analyst Tuna Amobi. Read More >> Related Stocks: Amazon.com Sentinelone Inc Cl A