A-Share Screen for Seven-Day Declines and Market Capitalization

Summary

This A-share stock selection idea screens for turnover within a specified band, seven consecutive down days, and circulating market capitalization above a stated floor. The article presents the conditions as a way to identify stocks that have fallen repeatedly while retaining a minimum size. It also supplies example formula and Python implementations, with the latter adding RSI, moving-average, price-change, and trading-amount conditions to the basic screen.

The proposed logic is a screening rule, not a tested entry-and-exit strategy. The article offers no performance statistics or comparison against a benchmark, and it warns that the core conditions omit other technical, sector, market, and fundamental factors. The expanded conditions are suggestions rather than demonstrated improvements; data definitions and units may also need adjustment across platforms. Traders would need to validate the signal, define execution and risk controls, and test for look-ahead bias before considering practical use.

Key ideas

• The base screen combines a turnover range, seven consecutive declining sessions, and a minimum circulating market capitalization.
• The example Python version adds RSI, moving-average, price-change, and trading-amount filters.
• The article identifies omitted sector, market, technical, and fundamental considerations as sources of risk.
• No backtest results or evidence that the added filters improve outcomes are provided.

Tags

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