This page monitors BTC and XRP across major exchanges, calculates a USD-like median (USD/USDT/USDC), highlights the highest vs lowest priced venues, and shows the spread as both $ and % to quickly spot arbitrage opportunities. Data is intentionally collected only during the daily peak liquidity window (13:00–17:00 UTC) because spreads and pricing are more reliable when volume is highest, order books are deepest, and slippage is lower.