Bitcoin stock is worth whatever the market says it is worth. There is no one answer to this question as the value of Bitcoin can fluctuate wildly from day to day, or even hour to hour.
However, at the time of writing this article, one Bitcoin was worth approximately $8,700.
Of course, this value could go up or down at any time and there is no guarantee that it will ever be worth anything at all. However, some people believe that Bitcoin has a lot of potential and could eventually be worth a great deal more than it is today.
Only time will tell whether this turns out to be true.