https://techcrunch.com/2018/01/17/bitcoin-drops-below-10k-after-three-days-of-cryptocurrency-correction/

The crypto crash that began two days ago accelerated yesterday and today, with essentially all top 100 coins down anywhere between 15-30 percent. The total market capitalization of all cryptocurrencies is hovering around $450 billion, down ~30 percent from $650 billion just 48 hours ago.

Yesterday, Bitcoin was just a few dollars away from dropping below $10,000, but it bounced back around $11k, a 15% drop from two days before. But Bitcoin is now trading below $10,000 on most major exchanges right now.