Screening Chinese Stocks with RSI, Order Flow, and Limit-Down Prices

Summary

The article proposes an A-share screening rule that combines an RSI below 65 with an external-to-internal trading volume ratio above 1.3, plus a prior-day 9:15 matching price at the daily limit-down level. It presents the setup as a way to find stocks that may offer opportunities after a sharp decline. The article also includes sample query and Python snippets, though their implementation details do not consistently correspond to the stated selection rule.

The document offers no historical test, return data, or comparison against a benchmark. It explicitly cautions that relying on one prior matching-price condition can overlook long-term fundamentals, that selection involves subjective choices, and that returns are not assured. It recommends combining technical and fundamental measures, statistically evaluating the rule, and reviewing it over time. These are suggestions rather than demonstrated improvements, so the screen should be treated as an unvalidated hypothesis rather than evidence of a profitable strategy.

Key ideas

• The proposed screen uses RSI below 65 and an external-to-internal volume ratio above 1.3.
• It also requires the previous day’s 9:15 matching price to have been at the limit-down level.
• The article frames the screen as a search for possible opportunities after steep declines.
• It warns that the rule omits long-term value and cannot ensure returns.
• The code examples and described criteria may not fully align, and no backtest evidence is provided.

Tags

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