Screening Chinese Stocks by Amplitude, Float Value, and Limit-Ups

Summary

The document presents a Chinese equity screening rule that selects stocks with amplitude above 1, circulating market capitalization above 10 billion yuan, and at least two limit-up events over the prior 500 days. It frames the combination as a way to find larger, volatile stocks that have shown strong price surges. A formula reference and a Python example illustrate how the conditions might be applied, though the example’s data handling does not clearly establish that each calculation matches the stated lookback and definitions.

The author identifies several limitations: the filters may leave few candidates, past limit-up moves can lead to buying after a large rise, and the screen can exclude promising stocks that have not hit the daily price limit. Suggested extensions include financial and valuation measures, technical indicators, and market or policy context. No backtest, benchmark, selection results, or evidence of predictive performance is supplied, so the proposed upside rationale remains unverified.

Key ideas

• The screen combines amplitude above 1, circulating market capitalization above 10 billion yuan, and at least two limit-ups in 500 days.
• The rule uses volatility, company size, and past sharp price rises as selection criteria.
• A restrictive screen may return few stocks and can miss candidates that have not reached the price limit.
• Using past limit-up activity may expose a strategy to buying after a substantial rise.
• The document suggests adding financial, valuation, technical, and market context, but provides no performance test.

Tags

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