Chinese Stock Screen for Three-Day Limit-Up Runs and Rising DEA

Summary

The document presents a Chinese equity screening idea combining daily price range, a recent three-session limit-up streak, and a rising DEA trend indicator. Its stated rationale is that a large range identifies active stocks, a sequence of limit-ups signals market attention, and the trend condition seeks shares with upward technical momentum. It includes example indicator logic and Python-style selection code, but the examples do not consistently implement the prose: the DEA condition is described differently from the EMA crossover calculation, and the sample futures data source does not clearly match the stock-screening universe.

The post warns that technical signals can be false, the approach omits long-term business and competitive factors, and relying on a narrow set of indicators can increase risk. It suggests checking data quality and adding other indicators and fundamental information. No backtest results, performance evidence, or detailed risk controls are reported, so the screen is best understood as an illustrative selection concept rather than a validated strategy.

Key ideas

• The screen combines a large daily price range, a recent three-session limit-up sequence, and an upward technical trend condition.
• The post interprets volatility and consecutive limit-ups as signs of activity and market interest.
• Its written DEA rule and sample EMA crossover logic do not appear to describe the same condition.
• The author cautions that technical signals may fail and that the screen omits longer-term business factors.
• The document provides no performance testing or evidence that the proposed screen is profitable.

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