According to the source, a post on X reported that roughly $400B was wiped from the total crypto market cap over the past 6 hours on Oct 10, 2025. Source: X. Traders should verify the reported drawdown against real-time total market cap charts and major crypto indices before acting. Sources: CoinMarketCap, TradingView. For price impact on BTC and ETH, confirm spot moves, BTC dominance, and correlation with total market cap to validate breadth and trend strength. Sources: TradingView, CoinMarketCap. Check perp market stress via aggregate liquidations, funding rates, and open interest to gauge whether forced selling drove the move. Source: CoinGlass.