Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. General Mills (GIS) downgraded to Sell at Goldman by analyst Jason English, who cited "mounting business challenges" as well as risk of "likely expensive" acquisitions. English added that General Mills and peers are more likely to acquire growth than be bought in the foreseeable future. 2. Best Buy (BBY) downgraded to Neutral at Citi with analyst Kate McShane saying the company's management team has had great success over the past three years, but sees limited upside from here given the need for continued investments in omnichannel and the weakness in areas including phones, tablets, PCs and video games. 3. Twitter (TWTR) downgraded to Sell at MoffettNathanson by analyst Michael Nathanson, who said that the company's enhanced timeline and Moments initiatives have done "essentially nothing" to bring in new logged-in users. 4. VMware (VMW) downgraded to Market Perform at Cowen with analyst Gregg Moskowitz citing the year-to-date rebound in shares, lack of near-term catalysts, the overhang from the Dell/EMC deal, and the medium-term execution concerns. 5. Community Health (CYH) downgraded to Underweight at Morgan Stanley reflecting near-term earnings risk as updated guidance assumes significant improvements in the base business over Q1 and below average organic growth opportunities. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.