Stock Screening by Volatility, Trading Volume, and Opening Strength

Summary

This equity screen selects stocks with an intraday range above 1%, volume above 10,000 lots, an opening price equal to the session low, and a trading date in 2021. The article interprets the range and volume requirements as signs of activity, while an open at the low is described as a potentially positive start. It includes formula and Python examples for applying these conditions.

The note does not provide backtest results or evidence that these characteristics lead to gains. Its explanation that a high open may indicate upward momentum is only a rationale, not a demonstrated relationship. It cautions that market conditions can change, warns of selection errors, and suggests adding technical and fundamental filters and setting stop losses. The fixed historical year also limits the screen's use as a current selection rule without adaptation.

Key ideas

• The screen requires an intraday range above 1%, volume above 10,000 lots, and an open at the low.
• It restricts eligible observations to the year 2021.
• The article associates active trading and a strong opening with potential price movement but supplies no test results.
• It recommends broader analysis and stop-loss planning while warning that changing conditions can invalidate the filters.

Tags

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