Here are Thursday's biggest analyst calls of the day: Uber, Under Armour, Bed Bath & Beyond & more

• Bank of America upgraded Bed Bath & Beyond to buy from neutral.
• Morgan Stanley reiterated Uber as a top pick in 2021.
• Piper Sandler upgraded Under Armour to overweight from neutral.
• Morgan Stanley upgraded Simon Property Group to overweight from equal weight.
• Citi upgraded Zillow to buy from neutral.
• Seaport downgraded Spirit Airlines to neutral from buy.