Bitcoin adds about $55 billion on December 17 rally as BTC briefly tops $90,000

On December 17, Bitcoin saw a rapid 30-minute price spike, jumping from around $87,000 to slightly above $90,000 before easing to roughly $89,950. Over the same window, its market capitalization increased from about $1.745 trillion to around $1.80 trillion, adding roughly $55 billion as 24-hour gains exceeded 3% amid elevated trading volumes.