Group 1 - The core viewpoint of the report emphasizes that an effective method to judge trends is to observe the trajectories of the highest and lowest prices, where continuously rising lowest prices indicate an upward trend and continuously falling highest prices indicate a downward trend [1][5] - The high-low track reversal strategy is based on calculating the simple moving average (SMA) of daily high and low points, recorded as HSMA(N) and LSMA(N) [1][6] - The strategy has shown strong profitability, with a backtest over 20 years indicating an expected value of 1.2594 and an annual compound return approximately 2-3 times that of the benchmark index [1][11] Group 2 - The strategy evaluation shows that the net value of the strategy significantly outperforms the benchmark index, with a strategy net value of 19.3717 compared to the benchmark's 4.826 [1][11] - The strategy has a total of 317 trades with an average holding period of 15.9 days, and it has achieved an annualized alpha of 11.3391% [1][11] - Performance statistics across various indices indicate that the strategy consistently outperforms the benchmarks, with the highest annual compound return of 27.1586% for the CSI 1000 index [1][13]