Here are Monday's biggest analyst calls of the day: Nikola, Merck, Yum! Brands, Tesla & more

Key Points
  • UBS upgraded Pinterest to buy from neutral.
  • Bernstein upgraded Qualcomm to outperform from market perform.
  • Deutsche Bank upgraded Yum! Brands to buy from hold.
  • Goldman Sachs upgraded Merck to buy from neutral.
  • Stephens downgraded DuPont to equal weight from overweight.
  • Susquehanna upgraded Under Armour to neutral from negative.
  • BTIG upgraded Expedia to buy from neutral.
  • Deutsche Bank added a catalyst call buy idea on Nikola.