Screening Chinese Stocks for a Sharp Daily Drop and Profit Growth

Summary

This Chinese stock screen combines a daily amplitude above 1 with a day’s low falling between 4% and 5% below the previous close, alongside year-over-year growth in net profit attributable to parent-company shareholders of more than 20% and up to 100%. The document presents the price conditions as short-term volatility signals and the profit-growth range as a fundamental filter. It also includes a sample selection outline using market and financial data.

The approach is intended to narrow a universe of stocks, but the post reports no backtest, returns, or evidence that the combination predicts future performance. It identifies market sentiment and business performance as risks, including earnings variability tied to seasonality or market saturation. It suggests adding indicators such as MACD or RSI and examining company competitiveness and growth prospects. The sample code has implementation caveats: parts of its filters and data references do not cleanly match the stated criteria, so it should not be taken as a validated reproduction of the screen.

Key ideas

• The screen combines an amplitude threshold with a daily low between 4% and 5% below the prior close.
• It also requires year-over-year net profit growth above 20% and no more than 100%.
• The post offers no backtest or performance evidence for the combined screen.
• Market sentiment and changing company results can undermine the signals.
• Additional technical and fundamental review may help assess candidates and risk.

Tags

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