Check out the companies making the biggest moves in premarket trading: Boeing — The aerospace stock added 1.5% following an upgrade to buy from hold by Deutsche Bank. PENN Entertainment — The gambling stock popped 4.4% on the back of a Bank of America upgrade to buy from neutral. The Food and Drug Administration won't be able to meet to make a decision by the target date of Dec. 16. Krispy Kreme — Shares of the doughnut chain slipped 1.8% following a downgrade by JPMorgan to neutral from overweight. Vale — U.S.-listed shares of the Brazil-based metal and mining company added 2.6% following an upgrade by Bank of America to buy from neutral.

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Persons: Sam Altman, Cantor Fitzgerald, Bristol Myers, Krispy, Krispy Kreme, Goldman Sachs, Iovance, Morgan Stanley, Terri Kelly, Kelly, —, Sarah Min, Alex Harring, Michael Bloom Organizations: Boeing, Deutsche Bank, Microsoft, PENN Entertainment, Bank of America, ESPN Bet, Myers, Drug Administration, Bristol, JPMorgan, Bros, Rentals, United Rentals Locations: Bristol, Vale — U.S, Brazil