Chart of the Day: Bitcoin's rapid plunge
According to the digital wallet Coinbase, bitcoin transactions plunged as those sites closed their virtual teller windows.
Transactions peaked at more than 98,000 per day in late November; by Monday the number was closer to 28,000.
With the instability has come a sharp drop in prices too. In late November a bitcoin was quoted at $1,124; by Tuesday morning the quote price was closer to $638.