Chinese Stock Screen Using Price Range, Opening Gain, and the 250-Day Average

Summary

This Chinese-language post presents an A-share screening idea combining three conditions: price amplitude above 1, a 9:25 gain below 6%, and the previous close above the 250-day moving average. It frames the filters as a blend of short-term volatility and opening strength with a long-term trend condition. The post also recommends considering fundamentals, industry characteristics, and liquidity rather than relying on technical filters alone.

The article supplies example indicator logic and a Python illustration using market data, but the implementation does not clearly match every stated condition: its range calculation and time-series indexing appear questionable, and it does not provide a backtest or performance evidence. The text itself cautions that a long moving average can select stocks with weak short-term behavior, historical technical data omit fundamentals, and sideways markets or broad market declines may undermine the screen. Treat the rules as a candidate filter requiring data validation and testing, rather than an established strategy.

Key ideas

• The proposed screen combines a price-amplitude threshold, a 9:25 gain ceiling, and a close above the 250-day average.
• The long moving average is intended to add a longer-term trend filter.
• The post advises combining technical conditions with fundamental, industry, and liquidity analysis.
• Its example implementation has potential inconsistencies and is not accompanied by performance testing.
• Historical price indicators can miss sideways conditions and broader market declines.

Tags

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