A-Share Screen Using RSI, Mid-Cap Range, and Prior Limit-Up Exclusion

Summary

This A-share stock screen selects shares with a 14-period RSI below 65, a circulating market capitalization between 5 billion and 10 billion yuan, and no limit-up close on the previous day. The stated rationale is to use RSI as a short-term weakness filter, restrict the universe to companies of a moderate market size, and avoid stocks that just experienced an unusually sharp move. The Python example further sorts qualifying names by daily percentage change and returns up to five when enough candidates are available.

The post supplies a formula reference and implementation outline, but no historical test, performance evidence, or explicit holding and exit rules. Its rationale that a low RSI may indicate limited downside is not demonstrated. The author acknowledges that the screen omits fundamental analysis and may misjudge stocks if it relies on a single technical measure. Suggested additions such as financial, industry, volume, or other indicator checks are proposals rather than validated improvements.

Key ideas

• The screen combines RSI below 65, a circulating capitalization range of 5 billion to 10 billion yuan, and exclusion of prior-day limit-up stocks.
• The rationale pairs a technical weakness filter with a market-size constraint and a filter against recent sharp gains.
• The example implementation ranks qualifying shares by daily percentage change and selects up to five when at least five qualify.
• The article provides no backtest or evidence that the conditions improve returns, and it flags the lack of fundamental analysis.

Tags

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