A-Share Stock Screening by Price Amplitude, Listing Age, and Market Cap

Summary

The document presents a basic Chinese equity screening rule: select stocks with price amplitude above 1%, more than one year since listing, and market capitalization above 200 million. It frames amplitude as a way to find active stocks, listing age as a simple maturity filter, and market capitalization as a proxy for company scale. A sample implementation outlines filtering a stock universe by capitalization and recent daily price data, then excluding certain special-treatment stocks.

The material offers a rule of thumb rather than evidence of a tested trading edge. It provides no backtest results, portfolio construction rules, transaction cost assumptions, or details on how often selections are refreshed. It also notes that market style shifts can make the criteria less suitable and suggests adding financial measures such as leverage or return on equity. The code example’s practical details may not fully match the stated logic, so the screen should be treated as an illustration rather than a fully specified strategy.

Key ideas

• The screen combines a price amplitude threshold, a minimum listing history, and a minimum market capitalization.
• The article treats amplitude as a proxy for trading activity and listing age as a basic maturity filter.
• The stated market capitalization cutoff is intended to exclude the smallest companies.
• The source warns that changing market conditions can weaken the usefulness of fixed screening criteria.
• Adding financial quality measures could make the selection process more comprehensive, but the document reports no validation results.

Tags

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