Chinese Stock Screening with Volatility, Moving Average, and Auction Flows

Summary

This Chinese equities screen combines three conditions: intraday range relative to the low exceeds 1%, the open is within 2% of the 10-day moving average, and opening-auction buying volume and amount meet stated thresholds. The proposed portfolio selects stocks passing all conditions. The article interprets range as a source of opportunity, proximity to the moving average as a valuation cue, and large auction purchases as possible evidence of strong demand or institutional activity.

It provides example implementations in a screening formula and Python, but no backtest, returns, benchmark, or transaction-cost analysis. The article itself warns that short-term signals may be affected by sentiment and herding, data quality and latency can distort selections, and the criteria alone may be inadequate. It suggests adding indicators and fundamentals, tuning the thresholds, and testing on historical data. The buying-flow measure and its units should be checked against the chosen data source before use.

Key ideas

• The screen requires a daily range above 1% and an open within 2% of the 10-day moving average.
• It also filters on opening-auction buying volume and amount using the stated thresholds.
• The article presents the combined conditions as a short-term stock selection method, without performance evidence.
• It flags sentiment, herding, data errors, and incomplete selection criteria as risks.
• Historical testing and additional indicators or fundamental checks are suggested, though no results are reported.

Tags

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