A Share Screen Using Intraday Range, Main-Fund Flow, and a Rising 30-Day Average

Summary

This note proposes screening Chinese shares for a daily price range above a threshold, positive main-fund control on the previous day, and a rising 30-day moving average. The accompanying indicator logic represents the price-range condition using the day’s high and low relative to the prior close, estimates fund activity from price and volume, and compares the current 30-day average with its prior value. A Python sketch illustrates applying these filters to listed shares.

The rationale is to combine active price movement, an inferred sign of large-player buying, and short-term upward direction. The note cautions that it gives little attention to company fundamentals, broader market conditions, or longer-term trends, and that the screen could select overbought stocks. It recommends adding market and profitability measures. No backtest or measured results are provided, and terms such as main-fund control are not clearly validated, so the screen’s assumptions and implementation require scrutiny.

Key ideas

• The proposed screen combines a minimum daily range, prior-day main-fund activity, and an upward 30-day average.
• The formula estimates fund activity from price and volume data.
• The author flags weak coverage of fundamentals and longer-term trend conditions.
• The selection rules are presented without backtest results or evidence of predictive performance.

Tags

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