Screening Stocks by Prior-Day Top-Trader Activity and Intraday Loss

Summary

This short-term stock screen combines three filters: a prior-day price amplitude above 1%, appearance on the previous day's top-trader list, and a current-day price decline between 4% and 5%. The post presents the decline as a potential pullback entry and treats high amplitude and top-trader activity as signs of attention and short-term movement. It includes formula-style and Python examples for calculating amplitude, checking list membership, and intersecting the candidate sets.

The method is presented as a selection idea rather than a tested strategy. The article itself warns that high-volatility stocks carry risk, that simulated results may differ from live outcomes, and that the screen may depend too heavily on short-lived market attention. Its description of the drawdown threshold is potentially ambiguous, and the examples mix prior-day and current-day price references; careful timing definitions and point-in-time data would be needed before evaluation. No backtest, benchmark, or evidence of profitable performance is supplied.

Key ideas

• The screen requires prior-day amplitude above 1%, prior-day top-trader-list inclusion, and a current-day decline between 4% and 5%.
• The proposed rationale is that attention and a sharp pullback may identify short-term trading candidates.
• The examples calculate each filter separately and then combine the candidate sets.
• High volatility, reliance on market attention, simulation gaps, and unclear timing conventions limit the strategy's evidential value.

Tags

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