Chinese Stock Screen for Volatility, Listing Age, Size, and Profitability

Summary

This stock-selection approach combines four filters: daily amplitude above 1, a listing age greater than one year, market capitalization below 10 billion yuan, and positive net income in each of the most recent four quarters. The accompanying sample workflow obtains basic listing and size data, checks quarterly income, calculates amplitude from daily price data, and leaves a placeholder for additional selection criteria. The article presents the screen as a way to combine activity, company age, size, and profitability characteristics.

No backtest results or return evidence are supplied. The author notes that the size cap may exclude potential growth companies and that the amplitude condition selects more volatile stocks, requiring risk control. Industry context and other indicators are suggested as possible refinements, but are not tested. The sample code has implementation gaps, including a placeholder where further selection would occur, and its data queries and amplitude calculation would need careful validation before use. The described criteria should therefore be treated as a screening concept rather than a complete trading system.

Key ideas

• The screen requires amplitude above 1, more than one year since listing, and market capitalization below 10 billion yuan.
• It also requires positive net income in each of the most recent four quarters.
• The sample workflow derives amplitude from daily high, low, and prior closing prices.
• The author warns that volatile selections need risk controls and that the size threshold may be overly restrictive.
• The code is incomplete and the document reports no tested performance.

Tags

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