Chinese Stock Screen for Limit-Down Opens and Recent Highs

Summary

This Chinese-language post outlines a short-term stock screen using three conditions: amplitude above one, a prior-day 9:15 matched price at the limit-down price, and a recent high condition. It explains the intended interpretation as combining volatility, a possible sign of market sentiment, and evidence of recent price movement. The post first describes a two-day high condition, then revises the final selection logic to use a three-day high. Its sample formulas implement the revised condition and rank selected stocks by total market value in descending order.

The author cautions that price-only screening omits company fundamentals and may overreact to a very short observation window. Suggested refinements include adding valuation measures or other technical indicators and widening the time window. The code is explicitly illustrative and may need adjustment. No historical test, return figures, execution assumptions, or defined holding period are given, so the screen’s predictive value is not demonstrated.

Key ideas

• The screen combines amplitude, a prior-day 9:15 matched limit-down price, and a recent-high condition.
• The post revises its final high condition from a two-day to a three-day window.
• Selected stocks are ranked by total market value in descending order in the example.
• The author warns that price-only conditions omit fundamentals and rely on a short window.
• The formulas are references requiring adaptation, and the post provides no backtest results.

Tags

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