$BTC What you need to know:

Bitcoin approached just a few dollars from the $105,000 level. Ethereum's ETH led the crypto gains with a 9% rise to $2,700.

Cryptos are benefiting from growing institutional interest and widespread adoption, as evidenced by Coinbase's inclusion in the S&P 500 index, according to Joel Kruger, market strategist at LMAX Group. Institutional flows will be selective with altcoins, said Paul Howard of Wincent.

BTC faces resistance at $106,000, so consolidation is likely before the next bullish leg, Bitfinex analysts said.