Bitcoin Price Usd

Bitcoin derives its USD price from aggregated trading activity across centralized exchanges including Coinbase, Binance, and Kraken. Each exchange calculates spot rates through order book matching engines pairing buy orders with sell orders at agreed price points. Market capitalization equals circulating supply multiplied by current dollar price, producing trillion-dollar valuations. Trading volume measures total Bitcoin quantity exchanged within 24-hour periods across all tracked platforms. Bid prices represent maximum amounts buyers offer for Bitcoin; ask prices represent minimum amounts sellers accept. Spread width indicates liquidity depth: narrow spreads signal healthy markets while wide spreads suggest thin order books. Stablecoins like USDT and USDC serve as dollar proxies on offshore exchanges lacking direct fiat rails. Price aggregators weight exchange rates by volume, filtering outliers from illiquid venues.