Interesting estimate of how much the biggest Bitcoin mining company, Bitmain, made last year in profits -- $4 billion. For comparison sake, that is the same that Goldman Sachs brought in. 
![bUHv6BYZ.jpg](https://steemitimages.com/DQmWJWEoVHhWX5qeSGtYkNjMvTaNHq5XNvGqnfDJcCbeX4d/bUHv6BYZ.jpg)
Secretive Chinese bitcoin mining company may have made as much money as Nvidia last year
cnbc.com