Bitcoin is on the rise again, reaching $99,000 just before Christmas after a week of volatility. Despite a decline following the Fed meeting, BTC rebounded thanks to the "Christmas rally". Bitcoin's market capitalization increased to $1.940 trillion, and its market dominance exceeded 54%. Altcoins are also up: Ethereum, XRP, and others showed growth from 2% to 5%. The total market capitalization of cryptocurrencies grew by $100 billion.