A-Share Screening by Intraday Range, Float Capitalization, and Price Gain

Summary

The document describes an A-share screen requiring an intraday high-low range above 1%, circulating market capitalization above 10 billion yuan, and a daily increase above 5%. Although the narrative calls the last condition an increase in holdings, the formula and sample code implement it as a closing-price gain versus the prior close. The screen combines trading activity, company size, and a strong daily move.

The article gives example indicator logic and Python-style selection steps, but reports no backtest or performance evidence. It warns that the rules omit financial quality and industry prospects, and that selecting stocks after sharp gains can carry substantial short-term risk. It recommends adding fundamental measures and stronger risk controls; the proposed machine-learning enhancement is not developed or tested. The code is illustrative and includes data-field and terminology inconsistencies, so the actual signal should be verified before use.

Key ideas

• The screen requires an intraday range above 1% and circulating market capitalization above 10 billion yuan.
• Its final condition is implemented as a daily price gain above 5%, despite being described as an increase in holdings.
• The article provides formula and sample-code references but no evidence of tested performance.
• It cautions that the screen omits fundamentals and industry outlook and may select risky stocks after sharp advances.

Tags

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