Bitcoin regains $4,000, nears best day since July

• Despite a warning from the SEC, Bitcoin soared 9% overnight to above the $4,000 level, heading for its biggest daily jump since July.
• New York exchange operator Nasdaq has confirmed it's moving ahead with a plan to list Bitcoin futures in Q1 2019, betting on sustained interest despite a dramatic plunge this year.
• The rout has intensified over the last two weeks, wiping billions of dollars off the market capitalizations of the world's biggest cryptocurrencies.
• Related: OTCQX:GBTC, COIN, COINB, BTC-USD, ETH-USD, XRP-USD, BCH-USD, LTC-USD