The U.S. Treasury has at least doubled the cap on long-term Treasury debt buybacks, marking a major unexpected bullish event. This has driven long-term Treasury yields downward and triggered a strong surge in gold with a massive bullish candlestick. The daily Bollinger Bands are opening upward, and the overall upward trend remains intact. Previously, the price formed multiple bottoms around 3950, and the pullback to the 10-day moving average did not break below it, which is a typical continuation pattern in an uptrend. After hitting new highs, the bulls are gaining momentum again, suggesting the upward trend is not over. The first target above is 4550-4590, with a mid-term target at the 4600 round number. The trend is characterized by simultaneous higher highs and higher lows. The key support range is 4430-4375. As long as this range is not broken, the bullish structure remains valid. After a strong rally, a pullback is acceptable, as it helps consolidate strength for further upward movement. Overall, maintain a bullish stance. Avoid chasing highs and wait for a pullback to enter long positions. Look to go long around the 4430-4474 support range after a stable pullback. If 4330 is effectively broken, the bullish logic becomes invalid, and stop-loss measures should be taken promptly.