Bitcoin (BTC), the most important cryptocurrency, which has been comparatively regular up to now in December, jumped 1.6% within the minutes after the report was launched, to about $17,930; it is up 5.2% over the previous 24 hours. Ether (ETH), the native cryptocurrency of the Ethereum blockchain and the second total, is up 6.9% over 24 hours to $1,335. The CoinDesk Market Index (CMI) rose 3.8%.