Chinese Stock Screening with Afternoon Inflows and Limit-Up Frequency

Summary

This document outlines a Chinese equity screen using three signals: daily amplitude above 1%, afternoon net inflow from large orders, and more than two limit-up days within ten days. The rationale is that amplitude reflects trading activity, large-order flows may indicate buying pressure, and repeated limit-ups can signal attention or momentum. It also gives sample indicator formulas and a Python-style illustration of filtering stocks.

The article warns that a strategy tied to market hotspots may lose usefulness when attention shifts. It recommends adding company fundamentals, market capitalization, liquidity controls, and profit-taking or stop-loss rules. No backtest or return evidence is presented, and the examples are implementation sketches rather than validated execution-ready code. The limit-up and order-flow signals may be sensitive to data definitions and market conditions, so their predictive value remains unestablished in the document.

Key ideas

• The screen combines amplitude above 1%, afternoon large-order net inflow, and more than two limit-up days in a ten-day window.
• The article interprets repeated limit-ups and afternoon inflows as signs of market interest and potential momentum.
• Reliance on popular themes may make the screen less useful when market attention changes.
• The document suggests adding fundamentals, market-capitalization filters, liquidity checks, and risk controls.
• No performance test is provided to establish that these signals predict future returns.

Tags

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