According to Yitai's past data, 4000 is its threshold and turning point.

On March 12, 2024, it first broke through 4000, and on April 13, 2024, it dropped to 2911.

On May 27, 2024, it rose to 3980, and on August 15, 2024, it fell to 2112.

On December 16, 2024, it reached 4109, and on April 9, 2025, it dropped to 1384.

On July 28, 2025, it returned to 3940, marking Yitai's fourth time reaching the 4000 threshold. Now, there has been a cliff-like drop again, and it is really recommended that everyone learn from these experiences. This time, it is still unknown how far it will drop, but the downward trend and signals are already too obvious. It is advised that everyone treat this situation with caution!