SOL pulled back last night and rebounded slightly this morning. Pay attention to the position of 253.5. If it stands firmly above this position, it will continue to rise. The upper pressure level is 257.4-260-264.6. If it cannot stand firmly above 253.5 today, it will pull back. The lower support level is 250-244.5-241.2. If it falls below 250 at the 1-hour level, this rebound will end and the market will go down again.