The core CPI data released by the Federal Reserve was below expectations, bringing new technical insights for Bitcoin and Ethereum. On the four-hour K-line chart, the price is experiencing oscillation near the middle band, with bearish momentum gradually weakening. The three lines of the Bollinger Bands are beginning to converge, indicating that volatility is contracting and the downward space is being compressed. From the one-hour perspective, the price briefly broke below the lower band but quickly stabilized. The RSI and KDJ indicators have already turned upward across all three lines, suggesting that short-term rebound momentum is building. The phase of increased selling volume has essentially ended, and the next focus is whether the bulls can successfully take over.