Equity Screening with Price Range, Large-Order Flow, and Bid-Ask Volume

Summary

This Chinese-language post outlines an equity screen combining a daily price-range threshold, a ranking based on net large-order activity, and first-level bid volume exceeding ask volume. It presents these conditions as a way to find active stocks with comparatively positive short-term sentiment, and includes illustrative screening logic and Python-style implementation guidance.

The post cautions that order-book imbalance and sentiment can change unpredictably, and that the screen omits company fundamentals and industry context. It suggests adding fundamental measures and technical indicators, while treating sentiment as supporting evidence. No backtest results or measured returns are reported, and the implementation example contains apparent data and variable inconsistencies, so it should not be treated as validated production code.

Key ideas

• The screen combines a price-range condition, large-order net flow, and greater best-bid than best-ask volume.
• The post interprets these conditions as signs of activity and favorable short-term sentiment.
• It warns that sentiment can shift quickly and that the screen ignores fundamentals and industry conditions.
• It recommends combining sentiment signals with fundamental and technical analysis.
• No performance testing is reported, and the sample implementation has apparent inconsistencies.

Tags

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