Screening Stocks by Daily Range, Year, and Float Market Value

Summary

This post describes a stock screen requiring a daily price range greater than 1%, a trading date in 2021, and float market capitalization above 10 billion yuan. It presents these conditions as a way to identify higher-volatility shares while limiting the universe to larger companies. Formula and Python examples show how the criteria might be applied to market data.

The document does not report selected stocks, backtest results, or evidence that the filters identify profitable opportunities. It cautions that the conditions are narrow and may produce misleading selections, and that large companies can be less active than smaller ones. Implementation details also differ: the formula expresses range relative to the low, while the Python example divides by the close. The year constraint makes the screen historical, and the note does not specify how the resulting candidates should be traded or managed.

Key ideas

• The screen selects dates in 2021 when a stock's daily range exceeds 1% and float market value exceeds 10 billion yuan.
• The post presents larger market value as a way to focus on larger companies and range as a volatility filter.
• It warns that the criteria alone are too limited to support reliable stock selection.
• The formula and Python example use different denominators for the daily range calculation.
• No performance data or trading rules are provided.

Tags

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