In 2021, Bitcoin has outperformed the S&P 500 index. Bitcoin is up 73%, while the S&P 500 is up 28% this year.

Blockchain data research firm Arcane Research said in a study that Bitcoin will continue this performance next year.

"Although bitcoin has beaten the S&P 500 in 2021, it had a much more volatile year. Bitcoin has increasingly behaved like a risk-on a