It describes a deep upside stretch: price is roughly four standard deviations above the chosen baseline window, which is a way to flag unusual extension—not a verdict on what happens next.
Find 4SD overbought stocks in seconds
This page targets upside exhaustion risk: names sitting far above baseline in standard-deviation terms, where fade, de-risking, or simply watching for failed continuation becomes the research question—not automatic mean reversion.
The list is a candidate set only. It flags statistical extension; it does not forecast direction, timing, or trade outcomes.
Free access needs no account; add a paid tier when you need more concurrent signals or watchlist depth.
What 4SD overbought actually surfaces
You are looking for equities where recent price sits unusually high versus a chosen baseline window—often alongside elevated Z-score context inside the app—so upside stretch is visible before you open a single chart.
The win is coverage speed: a wide market becomes a short review queue. Liquidity, trend, and catalysts still sit outside this filter.
Go to the upside stretch screen — No signup on the free path; paid tiers add headroom when you outgrow starter limits.
Branch to downside washouts, two-sided stretch workflows, stacked timeframe reads, or the Z-score explainer: 4SD Oversold Stocks, Mean Reversion Scanner, Multi-Timeframe Oversold Stocks, Z-Score Stock Scanner
Usage
- Pull names with extreme positive deviation so you are not hand-scanning the tape for stretched upside.
- Check whether the extension repeats across horizons or looks like a one-interval flare before you attach a narrative.
- Use chart work last: map exhaustion versus continuation, liquidity pockets, and where your process would invalidate a thesis.
When upside stretch is not enough
Trends can hold overbought profiles longer than a single print implies when buyers keep defending higher lows or flows stay one-sided.
Many desks wait for structure to break—failed highs, lost support, or broader confirmation—instead of treating one stretched reading as actionable by itself.
Frequently asked questions
No. It is a filter. It tells you where upside extension is extreme enough to review; it does not tell you when, how, or whether to trade.
A single timeframe can spike on news or a gap. Seeing whether similar stretch appears elsewhere helps you judge whether the behavior is broad or a one-off artifact.
Yes. The free scanner is available without signup so you can test the workflow. Upgrade only if you need higher limits, more saved context, or additional tooling.
Related scans
Queue upside extension for review
Run the 4SD overbought pass on the free scanner, then spend chart time only where the list still matches your rules.
Free access needs no account; add a paid tier when you need more concurrent signals or watchlist depth.