A-Share Screening by Price Range, Year, and Recent Volume Control

Summary

This document proposes screening Chinese A-shares for a daily price range above a threshold, observations dated in a specified calendar year, and a condition described as recent main-force control. Its example implementation approximates the last condition by checking whether the latest volume in a two-day window is the maximum. The article interprets a large range as higher volatility and the volume condition as a sign of institutional attention, then suggests placing qualifying names into a candidate pool.

The method is a set of filters rather than a complete trading strategy: it does not define position sizing, entry execution, or exit rules. The author warns that recent apparent control may reflect only a short-lived move and that restrictive criteria may yield few stocks. The document suggests adding indicators and stop-loss or take-profit rules, but reports no backtest or performance evidence. Its indicator formula and Python example operationalize the “control” concept differently only loosely, so that proxy and the date filter should be clarified before evaluation.

Key ideas

• The screen combines a daily range threshold, a calendar-year filter, and a recent-volume condition.
• The code approximates the stated main-force-control idea using volume relative to a short rolling window.
• A short-lived volume surge may not indicate lasting institutional interest, and restrictive rules can produce few candidates.
• The article provides no performance results and does not define complete trade management rules.

Tags

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