Screening Stocks by Fund Flow Strength and Recent Limit-Up Activity

Summary

This stock-selection note combines two filters: rank stocks by the strength of fund inflows and retain those that reached the daily price limit at least once during the prior 25 days. It describes stronger inflows and recent limit-up moves as signs of investor attention and short-term momentum, then suggests narrowing the inflow ranking to the top fifth of stocks. It also recommends considering fundamentals and longer-term trends alongside these signals.

The document gives illustrative code that smooths a net-value series and standardizes it, while using a rolling sum of percentage changes to represent recent price action. That calculation does not directly establish whether a limit-up occurred, so it may not implement the stated filter. No backtest, performance evidence, data definitions, or execution rules are provided. The author cautions that the approach may overlook fundamentals and longer-term direction, and that weak or noisy signals can lead to unsuitable selections. Treat the code and screening logic as a rough example that needs validation.

Key ideas

• The proposed screen ranks stocks by fund-inflow strength and looks for a limit-up event in the preceding 25 days.
• The note suggests selecting stocks in the top 20% by fund-flow strength.
• It recommends combining these short-term signals with fundamental analysis and longer-term trend assessment.
• The illustrative rolling percentage-change calculation does not directly test whether a limit-up occurred.
• The document provides no performance tests or evidence that the selection rules are profitable.

Tags

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