Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. McDonald's (MCD) downgraded to Hold from Buy at Argus with the firm citing expectations of slower comp-store sales growth, rising labor costs, and relatively high valuation will pressure shares over the next several quarters. 2. Dollar General (DG) downgraded to Hold from Buy at Jefferies with analyst Daniel Binder saying he views the stock as fairly valued at current levels. 3. InterOil (IOC) downgraded to Market Perform from Outperform at Bernstein. 4. Salesforce (CRM) downgraded to Mixed from Positive at OTR Global with the firm citing weak mid-tier partner checks that fell below expectations. 5. Best Buy (BBY) downgraded to Hold from Buy at Jefferies with analyst Daniel Binder saying he's less upbeat on the shares given the maturing 4K TV product cycle. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.