A-Share Screen Using RSI, Seven Down Days, and No Prior-Day Limit-Up

Summary

This A-share stock-selection rule combines RSI below 65 with seven consecutive sessions in which the close is below the open, and excludes stocks that hit the price limit on the previous day. The document frames the conditions as a technical screen that looks for stocks after a sustained run of weak daily candles while avoiding a prior-day limit-up. It also suggests broadening the analysis with company fundamentals, industry context, capital flows, and longer time horizons.

The article gives example indicator and Python logic, but reports no backtest, portfolio performance, or evidence that the screen predicts returns. The sample code and written criteria also require careful verification before use: data sources, date handling, limit rules, and the RSI calculation must match the intended market and screening date. The author cautions that the rule omits fundamentals and may be overly influenced by short-term price movements.

Key ideas

• The screen requires RSI below 65 and seven consecutive sessions with closes below opens.
• It excludes stocks that reached the upper price limit on the previous day.
• The article suggests adding fundamental, industry, capital-flow, and longer-horizon analysis.
• No performance evidence is provided, and the sample implementation should be checked against the stated criteria.

Tags

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