Stock Screening with Range, Reversal, and Prior-Day Control Signals

Summary

This stock selection recipe combines a daily high-low range above one percent, a reversal pattern described as an engulfing signal, and a measure labeled prior-day major-player control. The post presents formula and Python-style examples intended to screen shares satisfying all three conditions. It interprets the range as a volatility filter, the reversal as a possible change in direction, and the control measure as an indication of large-player activity or sentiment.

The author cautions that a control reading from the previous day may not predict subsequent performance, and that market or macroeconomic shifts can undermine the signals. Suggested additions include moving averages, volume, fundamental information, stop-losses, profit targets, and diversification. The formulas give implementation detail, but the post offers no backtest, performance data, or validation; moreover, the named reversal pattern and the formula conditions may not be equivalent. The screen should therefore be treated as a hypothesis to test, not a demonstrated source of returns.

Key ideas

• The screen combines a high-low range threshold, a reversal pattern, and a prior-day control signal.
• The range condition is intended to select shares with larger price movement.
• A prior-day activity measure is only a snapshot and may not persist into future sessions.
• The post proposes adding other indicators and risk controls, including diversification and exit rules.
• No performance evidence validates the screen, and the pattern label may differ from the coded condition.

Tags

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