If Apple's earnings hue closely to analysts' predictions, it'll be just the latest sign that the tech industry is on the downswing.
Yahoo Finance Live’s Brad Smith breaks down January’s biggest S&P 500 gainers.
1. Amazon: Is the cloud actually underestimated? E-commerce pioneer Amazon (NASDAQ: AMZN) operates in many countries worldwide and has a 37.8% market share in its home U.S. market. With the global e-commerce industry projected to grow at a steady rate for the rest of this decade, Amazon has a clear opportunity to grow its revenue for many years if it can retain this market share lead.