Fly Intel: Top five analyst downgrades

Catch up on today's top five analyst downgrades with this list compiled by The Fly: 1. Tesla (TSLA) downgraded to Underperform from Sector Perform at RBC Capital with analyst Joseph Spak saying the company's more "tactful messaging" conveys downward pressure to growth expectations and also sees the "realities" of Tesla becoming a volume player highlighting its "challenges to scale and deliver high volume at high ASPs/margins." 2. Lowe's (LOW) downgraded to Hold from Buy at Loop Capital with analyst Laura Champine saying she thinks she was previously too optimistic on Lowe's likely margin progression. 3. Williams-Sonoma (WSM) downgraded to Underweight from Equal Weight at Morgan Stanley with analyst Simeon Gutman saying he believes top and bottom-line pressures will intensify in 2019. 4. Merck (MRK) downgraded to Market Perform from Outperform at BMO Capital with analyst Alex Arfaei citing the company's over-dependence on Keytruda, the Street's high expectations, and his views on upcoming competitor trials combining for a more balanced risk-reward on Merck. 5. Pfizer (PFE) and Mylan (MYL) were downgraded to Neutral from Buy at UBS. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.