Bitcoin falls below $18,000 milestone

• Bitcoin fell below the $18,000 per coin benchmark Tuesday morning, down roughly 5.8% in the last 24 hours.
• In the same period, the cryptocurrency - which now has a market cap of $304.43 billion - reached as high as $19,730 per coin.
• The price is roughly back to where it was Sunday afternoon, when CME Group launched a bitcoin futures exchange exactly one week after crosstown competitor CBOE also launched trading of the contracts.
• Ethereum, the second-largest cryptocurrency by market cap, was up more than 6% Tuesday morning. Keep up to date on all cryptocurrency and blockchain news with Crypto Insider, a new newsletter from Business Insider.
• Follow the price of bitcoin in real-time here>>

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