Screening Chinese Stocks by Range, Turnover, and Concentration

Summary

This stock screen combines a price-range condition, recent turnover, and a measure of stock concentration. The proposed final rule selects shares with an amplitude above the stated threshold, prior-day actual turnover within a specified band, and concentration below a ceiling. The page includes example formula and Python snippets, but their definitions and units are not fully consistent with the prose: the screen is described with turnover ranges while the examples calculate volume ratios, and the concentration calculation is only sketched.

The author notes that price activity and market indicators alone may favor low-quality, actively traded small-cap stocks. The screen does not assess financial strength or industry prospects, and concentration is not a direct measure of competitive position. Suggested improvements include adding profitability, return on equity, industry context, and other market indicators. No backtest results or evidence of profitability are supplied, so this is a rough screening idea rather than a validated strategy.

Key ideas

• The proposed screen combines price amplitude, recent turnover, and a stock-concentration measure.
• The page supplies example formulas, but turnover and concentration definitions are not consistently specified.
• The author warns that the screen may select risky small-cap names without considering fundamentals.
• Adding financial and industry measures could broaden the selection criteria, but no performance validation is shown.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.