A-Share Stock Screening by Opening Gain, Turnover, and Position Increase

Summary

This Chinese-language post describes a short-term A-share screening rule using three inputs: a position-increase share above 5%, the prior day’s actual turnover rate within a stated 3–28 range, and a gain below 6% at 9:25. It frames the position-increase measure as a sign of recent capital interest and the turnover and opening-price conditions as indicators of activity and movement. The post includes rough pseudocode for selecting stocks that meet the listed thresholds, though its sample data calls are incomplete and do not establish a reproducible implementation.

The author notes that the screen focuses on short-term price and turnover behavior and omits company fundamentals, market capitalization, industry, and profitability. Suggested extensions include adding fundamental filters and technical indicators such as moving averages or Bollinger bands. No backtest, portfolio construction rules, transaction costs, or performance evidence is supplied, so the proposed relationship between the screening signals and future returns remains unverified. The risk discussion is qualitative and recommends additional filtering rather than demonstrating that the additions improve results.

Key ideas

• The screen combines position-increase share, prior-day turnover, and a 9:25 gain threshold.
• The stated thresholds are position increase above 5%, turnover between 3 and 28, and opening gain below 6%.
• The post interprets these inputs as signs of capital interest and short-term trading activity.
• It suggests adding company fundamentals and technical indicators to broaden selection criteria.
• The post provides no backtest or evidence that the screen predicts returns.

Tags

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