Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. HD Supply (HDS) downgraded to Equal Weight from Overweight at Barclays and to Market Perform from Outperform at William Blair. 2. Macerich (MAC) downgraded to Market Perform from Outperform at BMO Capital with analyst Jeremy Metz saying the stock's near-term risk/reward proposition has "skewed lower as potential catalysts dim." 3. Enanta (ENTA) downgraded to Underweight from Neutral at JPMorgan with analyst Eric Joseph saying the EDP-305 results yesterday, while positive and fundamentally de-risking for the compound, fall short of delivering best-in-class status. 4. Timken (TKR) downgraded to Underperform from Neutral at BofA/Merrill with analyst Ross Gilardi saying the company has been "too aggressive" on the M&A front over the past 3-5 years, which poses a risk to its performance in the event of an economic downturn. 5. Northern Trust (NTRS) downgraded to Neutral from Buy at UBS with analyst Brennan Hawken citing valuation. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.