A-Share Screening with RSI and Since-2021 Return Limits

Summary

This Chinese stock-screening note selects shares with a 14-period RSI below 65, excludes the STAR Market, and limits gains since 2021 to less than 50%. The stated intent is to avoid stocks that have risen sharply while retaining an RSI filter and a restriction on technology-oriented listings. It provides indicator formula references and a sample Python implementation using historical and real-time quote data.

The note presents no backtest results or evidence that the filters improve returns. It acknowledges that the screen uses past price behavior and may omit company fundamentals, and that its fixed start date makes the appreciation threshold time-dependent. The sample code also applies name-based exclusions and uses a price comparison as a proxy for the stated return filter, so implementation details may not precisely match the screening description. The method is a candidate-generation rule, not a complete portfolio strategy; it does not specify ranking, position sizing, or exit rules.

Key ideas

• The screen requires RSI below 65 and excludes STAR Market stocks.
• It also filters out stocks whose appreciation since 2021 is at least 50%.
• The note supplies RSI formula references and illustrative implementation code.
• The author identifies missing fundamental analysis and a potentially arbitrary time window as limitations.
• No performance testing or portfolio construction rules are provided.

Tags

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