Bitcoin surged 4% in one hour, nearly recovering its December losses, after MicroStrategy announced a dividend reserve fund plan. The announcement initially triggered a sell-off, but the market quickly rebounded. MicroStrategy, which holds 650,000 bitcoins, saw its market value increase by approximately $2 billion, with its NASDAQ-listed stock (MSTR) rising 6%. Chairman Michael Saylor marked the occasion by posting 'Back to Work' on social media.