According to @Pentosh1, a 1% move in BTC equals about $1,700, described as nearly half an ETH, underscoring the high notional volatility per coin for risk management and sizing decisions (source: @Pentosh1, Aug 10, 2025). According to @Pentosh1, traders should calibrate position size, leverage, and stop-loss levels around an estimated ~$1,700 per 1% BTC move and consider BTC-ETH spread or hedge adjustments given the cross-asset comparison (source: @Pentosh1).