Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Whole Foods downgraded to Underperform from Neutral at BofA/Merrill with analyst Robert Ohmes saying he sees increased risks to Whole Foods' comp and margin outlook from the difficult operating environment. 2. Michaels (MIK) downgraded to Neutral from Buy at BofA/Merrill with analyst Denise Chai saying competitors are getting more aggressive with increased new store growth and promotions and expects Michaels comps to remain muted and margins to be "flattish." 3. MDC Partners (MDCA) downgraded to Market Perform from Outperform at BMO Capital, to Market Perform from Outperform at Wells Fargo, and to Neutral from Outperform at Wedbush. 4. Fluor (FLR) downgraded to Neutral from Buy at DA Davidson, to Neutral from Outperform at Macquarie, to Hold from Accumulate at Johnson Rice, and to Market Perform from Outperform at William Blair. 5. Cornerstone OnDemand (CSOD) downgraded to Neutral from Outperform at Credit Suisse, to Underweight from Neutral at JPMorgan, to Neutral from Buy at UBS, and to Buy from Strong Buy at Needham. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.