A-Share Screen for Moving-Average Convergence and an Upward Trend

Summary

This document outlines a technical screen for Chinese stocks using three conditions: at least five moving averages converge, the stock did not close at its daily price limit on the previous day, and its 30-day average is rising. The intended interpretation is that converging averages indicate short-term price stability, avoiding a prior limit-up may sidestep an unusually sharp move, and a rising 30-day average points to an upward trend. The article also sketches Python functions for rolling averages, volatility, and identifying curve intersections, though the code excerpt is incomplete.

The text identifies market exposure, noisy or inaccurate technical signals, and transaction costs as risks. It proposes trying longer averages, adding indicators such as Bollinger Bands or MACD, and checking performance across markets and industries. These are suggestions, not validated improvements: the document provides no definition of how close averages must be to count as converged, no backtest results, and no evidence that the screen controls risk or produces returns. Its final wording around the prior day’s limit-up filter is ambiguous, although the earlier description indicates excluding stocks that hit the limit.

Key ideas

• The screen combines convergence among at least five moving averages with a rising 30-day average.
• It also filters based on whether the stock reached its daily price limit the previous day.
• The rationale treats average convergence as a sign of relative stability and the rising average as an uptrend signal.
• Suggested refinements include longer moving-average periods and additional technical indicators.
• The document gives no convergence threshold, performance test, or validated risk controls.

Tags

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