Screening Chinese Stocks with Afternoon Inflows and Bollinger Bands

Summary

This stock-selection proposal combines a daily price-range threshold, afternoon large-order inflows and a closing price between the Bollinger middle band and upper band. The document gives formulas for the range and band conditions, describes a volume-related calculation for the inflow signal, and sketches a Python workflow for screening listed stocks. It recommends further fundamental and macroeconomic filtering and mentions stop-loss and take-profit controls as possible risk measures.

The discussion is conceptual and includes no backtest, return series or evidence that the signals predict future performance. There is also an internal inconsistency: one section refers to a limit-up-day count, while the stated final screen instead uses the Bollinger-band condition. The code’s data-frequency and afternoon-flow interpretation are not fully established, so the signal definitions and inputs would need clarification before testing or implementation.

Key ideas

• The proposed screen looks for elevated daily range, afternoon large-order inflows and a close between Bollinger bands.
• The author recommends adding fundamental and macroeconomic filters and considering exit controls.
• The document provides formulas and a code sketch but no performance evidence.
• Its description includes inconsistent criteria, and the timing of the flow data is not fully specified.

Tags

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