Screening for Seven-Day Declines After a Recent Limit-Up Move

Summary

This Chinese equity screen looks for stocks with turnover between 3% and 12%, a decline on each of the latest seven sessions, and a limit-up event within the preceding 25 trading days. The proposed rationale is to combine active trading with a sharp pullback in a stock that recently attracted strong attention. The article provides example indicator logic and Python-style screening code, though the stated limit-up condition and code expressions may not implement the same test consistently.

The author flags overfitting and suggests adding moving averages, MACD, market capitalization, earnings, or growth measures as additional filters. These are proposed refinements, not tested results. The document supplies no backtest, entry or exit rules, position sizing, or evidence that a recent limit-up followed by a losing streak predicts a rebound. The screen is therefore a candidate-selection heuristic with substantial validation and risk-management needs.

Key ideas

• The screen combines 3% to 12% turnover with declines across seven consecutive sessions.
• It also requires a limit-up event within the prior 25 trading days.
• The suggested rationale is that a recent surge in attention may make a pullback worth investigating.
• The article warns of overfitting and proposes adding technical or fundamental filters.
• No backtest or complete trading rules are provided, and the sample code may not match the stated condition exactly.

Tags

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