Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Activision Blizzard (ATVI) downgraded to Equal Weight from Overweight at Stephens with analyst Jeff Cohen saying recent reporting from Kotaku about issues in the Call of Duty pipeline have begun to make bull case for Activision shares "look like less of a certainty." 2. Mallinckrodt (MNK) downgraded to Hold from Buy at Jefferies with analyst Anthony Petrone saying the company's risk profile "continues to heighten" given Medicare's reduced funding for Acthar, unknowns around opioid litigation, and its balance sheet health. 3. Anadarko (APC) downgraded to Market Perform from Outperform at Cowen with analyst David Deckelbaum citing the increased takeout bid that was accepted from Occidental Petroleum (OXY). 4. Expedia (EXPE) downgraded to Hold from Buy at Argus with analyst John Staszak citing its "mixed" Q1 results that showed bookings growth at the company's Vrbo unit slowing to "just 5%" from 46% in Q1 of last year. 5. Zayo Group (ZAYO) downgraded to Market Perform from Outperform at Raymond James. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.