Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. McKesson (MCK) upgraded to Buy from Hold at Jefferies analyst Brian Tanquilut saying the combination of stabilizing generic drug pricing, a discounted valuation relative to peers and higher earnings estimates due to tax reform will "boost investor interest this year and push the stock's multiple to more appropriate levels." 2. Cree (CREE) upgraded to Hold from Sell at Williams Capital. 3. 3M (MMM) upgraded to Buy from Neutral at Hilliard Lyons with analyst Spencer Joyce saying he sees as a tactical opportunity ahead of its earnings report as he expects estimates to rise following the company's fourth quarter earnings release. 4. Energen (EGN) upgraded to Overweight from Equal Weight at Morgan Stanley with analyst Evan Calio saying he expects oil markets to tighten and gas to remain weak in 2018. 5. Capital City Bank (CCBG) was upgraded to Outperform from Market Perform at Hovde Group and to Hold from Sell at Sandler O'Neill. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.