Coinbase, AMTD Digital, Restaurant Brands, Alibaba and more
A Burger King restaurant seen in Milton, Pennsylvania.Paul Weaver | SOPA Images | LightRocket | Getty ImagesCheck out the companies making the biggest moves in midday trading on Thursday:Coinbase — Shares of the cryptocurrency exchange jumped about 15% after the company announced a partnership with BlackRock, the world's largest asset manager, that will allow its institutional clients to buy bitcoin. The ticker COIN also became one of the most mentioned names on Reddit's WallStreetBets forum, according to Quiver…