Facebook's stock price has had a rollercoaster year driven by an ad boycott, censorship controversies, and blockbuster results. Here are its biggest moves in 2020.

· *Facebook shares are seeing a steady fall as more advertising brands join a boycott movement against the social-media giant.*
· *The tech giant was one among the big few to perform comparatively well despite the storm of the pandemic, but its stock now tells us a different story.*
· *Markets Insider rounded up some of...