Bitcoin is joined by ether and cardano, which have surged 11% and 53% in the last seven days respectively.
Analysts pointed to the Biden proposal to double capital gains taxes on high-income individuals as the catalyst.
Bitcoin, now worth more than most U.S. corporations, first reached "dollar parity" 10 years ago.
The price could go higher, unless traders start taking profits.
The combined value of the cryptocurrency market rose to $185.89 billion earlier today, its highest level since Nov. 18.
A new report from Messari estimates that the true market capitalization and circulating supply of XRP is markedly less than what most data sources currently present.
An ICO advisory firm believes bitcoin's price might jump to $96,000 in the next five years, according to a new analysis of the crypto market.