Chinese A-Share Screen Using RSI, Daily Gains, and Prior Limit-Ups

Summary

This proposed stock screen selects main-board Chinese shares with RSI below 65, a daily gain above 1%, and at least two limit-up moves during the prior 500 days. The article interprets the RSI condition as indicating potential rebound room, the positive daily return as strength, and previous limit-ups as evidence of market attention. It presents the combination as a way to seek excess returns, but supplies no backtest results or measured evidence supporting that expectation.

The article warns that the approach may depend heavily on sentiment and news, encourage chasing strong moves, and lose money in unfavorable markets. It suggests adding capital-flow or block-trade information, optimizing parameters quantitatively, and using stop-loss and take-profit rules. Its sample SQL and Python implementations do not consistently match the stated lookback: the SQL checks only the latest two observations, while the Python rolling condition also tests a two-observation window. These discrepancies need resolution before the screen can be reproduced reliably.

Key ideas

• The proposed screen combines RSI below 65, a daily gain above 1%, main-board status, and two or more limit-ups over 500 days.
• The article frames the RSI threshold as rebound potential and the daily gain as momentum.
• It warns of sentiment dependence, chasing risk, and losses during adverse markets.
• Suggested extensions include capital-flow data and explicit stop-loss and take-profit rules.
• The supplied code appears inconsistent with the stated 500-day lookback.

Tags

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