Screening Small-Cap Stocks by Range, Profitability, and Auction Change

Summary

This Chinese A-share selection screen combines an intraday price-movement filter with size, profitability, and pre-open price-change conditions. It seeks stocks with an amplitude above 1, market capitalization no greater than 10 billion yuan, positive net profit, and an auction price change between -2% and 5%. The article’s sample logic also applies additional tradable-market-capitalization and board-related conditions, so the code example is not identical to the short verbal description.

The article frames larger amplitude as a source of short-term opportunity, smaller capitalization as potential growth exposure, positive earnings as a quality check, and the auction range as a way to avoid weak or overheated candidates. It cautions that technical filters can overlook fundamentals and that short-term price seeking can raise risk. Suggested refinements include reviewing company finances and industry context, adding dividend yield, and setting stop-loss and profit-taking rules. No historical test, return data, or risk-adjusted evidence is supplied, and the screening thresholds do not by themselves establish growth prospects or control losses.

Key ideas

• The screen requires amplitude above 1, market capitalization up to 10 billion yuan, positive net profit, and auction change between -2% and 5%.
• The accompanying sample logic adds tradable-market-capitalization and board filters.
• The article interprets amplitude and auction change as short-term opportunity and momentum cues.
• It warns that technical filters can miss fundamental and industry risks.
• No backtest or performance evidence is provided, and explicit exit rules are recommended.

Tags

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