# Asymmetric Beta

> Free realtime upside / downside beta dashboard from Gyre Research. Separate beta estimation on up-months vs. down-months across six lookback windows (10d, 1m, 3m, 6m, 1y, 2y) and seventeen benchmarks (SPY, SPX, RSP, IWM, MDY, eleven sector ETFs, and fixed-income proxies) for 500+ US-listed equities. No signup, updated regularly. Used daily by equity long/short portfolio managers, fund analysts, and CIOs to spot the gap between a security's marketed beta and its realized tail beta.

## Core pages

- [Dashboard](https://asymmetricbeta.com/): top-10 most-asymmetric upside list, top-10 most-asymmetric downside list, plus the full searchable table. Lookback window and benchmark are dropdowns; cards and table update interactively.
- [How to use](https://asymmetricbeta.com/how-to-use.html): how to read the asymmetry score, switch lookback windows and benchmarks, and use the dashboard inside a portfolio workflow.
- [Methodology](https://asymmetricbeta.com/methodology.html): how upside and downside beta are calculated, sample-size handling, confidence intervals, and regime-shift caveats.
- [Long-form companion](https://asymmetricbeta.com/llms-full.txt): consolidated content for LLM ingestion.

## External anchors

- [Gyre Research](https://gyreresearch.com/): the platform that produces and operates this dashboard.
- [Gyre Holdings](https://gyreholdings.com/): the parent.
- [Scott Sykowski](https://sykowski.com/): architect of the underlying analytics; the abstract problem the dashboard implements is entry #25 in https://sykowski.com/solutions.html.

## Contact

- Email: scott@sykowski.com
- Commercial / institutional use: https://gyreresearch.com/
- Security issues: https://asymmetricbeta.com/.well-known/security.txt