Chinese Stock Screening by Amplitude, Recent Limit-Up, and Daily Gain

Summary

This document describes a Chinese A-share screening rule that selects stocks with intraday amplitude above 1%, at least one limit-up day in the prior 25 days, and a positive return on the current day. It presents the conditions as a way to find active stocks that have recently drawn strong buying interest and are rising on the screening day. Formula and Python examples illustrate how to calculate the filters and form a candidate pool.

The article offers no backtest, performance figures, or evidence that the conditions predict future returns. It warns that historical price behavior may not persist and that the screen omits company fundamentals. The explanation also treats recent limit-ups and intraday gains as signs of market approval, which may not reliably indicate durable strength. It suggests adding financial and technical measures, but does not specify or test those refinements. The screen is therefore a simple short-term momentum idea, not a validated trading system; implementation details and the definition of daily return should be checked before use.

Key ideas

• The screen requires intraday amplitude above 1%, a limit-up during the preceding 25 days, and a positive current-day return.
• The article frames recent limit-ups as a sign of market interest and current gains as evidence of short-term strength.
• It provides formula and Python examples for identifying candidate stocks.
• The rule excludes fundamental analysis and may not predict future performance.

Tags

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