A-Share Opening Auction Momentum Screen with Liquidity and Earnings Filters

Summary

This stock-selection approach screens Chinese A-shares for turnover between 3% and 12%, market capitalization below 10 billion yuan, and positive income. It then looks for a sufficiently large price rise during the opening auction and combined large and extra-large buy flow above 7 million yuan. The intended idea is to favor liquid stocks showing early strength, with an earnings filter intended to avoid loss-making firms. The article also suggests adding technical indicators such as KDJ to refine selection.

The document supplies screening conditions and illustrative platform and Python references, but it does not report a backtest or realized returns for the strategy. It warns that auction prices can be manipulated, that the screen depends heavily on market liquidity, and that large-order buying may not persist. The examples use specific dates and data fields, so implementation would require checking data availability and aligning each condition to the intended trading time.

Key ideas

• The screen combines turnover, market-capitalization, and positive-income filters for A-shares.
• It seeks stocks with strong opening-auction price changes and large combined buy flows.
• The article proposes technical indicators such as KDJ as possible additional filters.
• Auction prices can be vulnerable to manipulation and speculation.
• The article provides no measured strategy performance, and large-order flows may fade.

Tags

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