Historically, the benchmark index made a trough whenever the long-short ratio dropped to 0.2-0.3. In the past five years, there were only 19 such instances out of total trading days of 1417.
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The psychological mark of 22,000 holds intermediate support, followed by strong support of the 21,800-21,700 subzone. On the higher end, the 20-DEMA placed at 22,300,