KEY POINTS
  • The virtual currency climbed suddenly at around 3:30 a.m. ET, adding $5,000 in the space of an hour to trade at a price of $37,299.
  • Musk added #bitcoin to his Twitter bio earlier Friday morning and sent out a cryptic tweet, saying: "In retrospect, it was inevitable."
  • It adds to the wild volatility in markets this week, as the stock prices of heavily-shorted companies like GameStop surged dramatically.

Bitcoin skyrocketed as much as 20% on Friday after Elon Musk added the hashtag #bitcoin to his Twitter bio.

The virtual currency climbed suddenly at around 3:30 a.m. ET, adding $5,000 in the space of an hour to trade at $37,299, according to data from industry site CoinDesk. At 8:00 a.m. ET, it extended gains to trade around $37,653.