Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. HollyFrontier (HFC) downgraded to Sell from Neutral at Goldman Sachs with analyst Neil Mehta saying he now sees a less attractive crude differential environment given a narrower Brent-WTI and WTI-WCS spread forecast in 2019 and 2020. 2. BP (BP) downgraded to Outperform from Top Pick at RBC Capital with analyst Biraj Borkhataria citing valuation. 3. Cisco (CSCO) downgraded to Buy from Conviction Buy at Goldman Sachs with analyst Rod Hall saying Cisco has executed well on rolling out its Catalyst 9000 products that have driven "solid" double digit growth in campus switching revenues. 4. DowDuPont (DWDP) downgraded to Sector Perform from Outperform at RBC Capital with analyst Arun Viswanathan citing the impact of the company's spinoff of Dow on April 2nd. 5. EOG Resources (EOG) and EQT Corporation (EQT) downgraded to Neutral from Buy at MKM Partners. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.