Although the short-term trend of the double bottom has experienced slight fluctuations and corrections, the structural center of gravity continues to move downward, indicating a typical bearish accumulation phase.

The price repeatedly tests key support levels with very weak stabilization, and the rebound cannot break through the moving average resistance, with volume continuing to diverge.

Cycle indicators fully point to a bearish trend, with effective breakdowns of patterns and no basis for reversal. Currently, the trading strategy remains to go short on rallies, which present the best entry opportunities.

Trading suggestions: For aggressive traders, go short directly at 2020; for conservative traders, short around 2040-2070, with a target near 1950-1920; if 1900 is not broken, continue with the trend, otherwise adjust accordingly.