Screening Chinese Equities for Volatility and Repeated Limit-Ups

Summary

This Chinese-language post describes an equity screen intended to run before 10 a.m. It selects non-ST stocks with daily amplitude above 1% and at least two limit-up events over the prior 500 days, then applies a further condition called the five-step limit-up method. The post provides indicator formulas and a Python example, though the code’s historical-data checks and lookback handling do not cleanly match every stated condition.

The rationale is that large swings and repeated limit-ups may indicate market attention and momentum, while excluding ST-designated shares removes one category of distressed stock. The author cautions that screening does not remove other company risks or the possibility that market interest fades and selected shares enter prolonged declines. Suggested improvements include adding financial results, earnings history, and industry prospects. The material explains a screening concept but gives no performance results, benchmark comparison, or detailed definition of the five-step confirmation rule, so the selection logic is not validated as a profitable strategy.

Key ideas

• The screen looks for non-ST shares with amplitude above 1% and at least two limit-ups in 500 days.
• A separate five-step limit-up condition is described as confirmation, but its full definition is not supplied.
• The post presents both indicator formulas and a Python illustration of the screening process.
• Excluding ST shares does not address other fundamental risks or a decline in market attention.
• Adding financial and industry information is suggested, but no backtest results are reported.

Tags

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