Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Arista Networks (ANET) downgraded to Sell from Hold at Deutsche Bank with analyst Vijay Bhagavath saying he is more cautious on the company's beat and raise story after his primary research indicated volatility in product orders. 2. GrubHub (GRUB) downgraded to Hold from Buy at Stifel with analyst John Egbert citing valuation as near-term risk/reward appears balanced at current levels. 3. Akcea Therapeutics (AKCA) downgraded to Market Perform from Outperform at Wells Fargo with analyst Jim Birchenough saying he sees the shares as fairly valued ahead of the expected volanesorsen approval and launch by July 6. 4. Zoetis (ZTS) downgraded to Equal Weight from Overweight at Morgan Stanley with analyst David Risinger saying shares are approaching his $87 price and now sees more balanced risk/reward. 5. Suburban Propane (SPH) and AmeriGas (APU) were downgraded to Underweight from Neutral at JPMorgan. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.