
One bitcoin is now worth less than $5,900, down 25 percent from Wednesday's high above $7,800. Meanwhile, the currency of a rival, spinoff network called Bitcoin Cash, has doubled to more than $1,500 over the same four-day period.

One bitcoin is now worth less than $5,900, down 25 percent from Wednesday's high above $7,800. Meanwhile, the currency of a rival, spinoff network called Bitcoin Cash, has doubled to more than $1,500 over the same four-day period.