It's mad, I've just sold my stock which I bought for £4900/pB and sold for £8k/pB. Just be careful, as bitcoin is now a major target and threat for banks. And banks have a massive influence on government policy. This pressure may lead to markets such as the China market withdrawing. However, I believe that as BTC is a major currency for illegal activity. Governments will soon put regulation in place restricting the 'un-tracability' of it. Which then may lead to people opting out of btc for the dark-web, and subsequently the market value will drop significantly. Just be careful, and keep an eye on the media.