All indicators

RSI-2

By LuxAlgoJun 17, 2026

Static chart image

RSI-2 runs Wilder's RSI at a two-bar lookback — turning the oscillator into a fast gauge of short-term stretch — and builds the published mean-reversion workflow around it. The definitive clean build of RSI-2 adds the two price-chart averages the rules call for: a 200-bar trend filter deciding tradable direction, and a 5-bar exit average tracking the resolving close. Setups print as triangles on the price chart; the pane carries 90/10 bands and a gradient fill around the 50 midline.

How to Trade the RSI-2?

  • Long setup: RSI-2 stretched below the oversold band with price above the trend filter — buying a routine pullback inside an uptrend.
  • Short setup: the mirror image — a stretch above the overbought band with price below the filter.
  • Exit: a long resolves on the first close back above the exit average, a short on the first close back below it.
  • Raw stretches: the band-crossing alerts fire regardless of regime, usable for scaling out into a spike rather than initiating.

A new setup is only marked once the previous one has resolved through the exit average.

RSI-2 Settings

  • RSI Length (default 2) and Source (default close): the oscillator itself.
  • Overbought Level (default 90) and Oversold Level (default 10): at a two-bar length the classic 70/30 bands trigger constantly, so the meaningful levels sit further out.
  • Consecutive Readings (default 1): closes beyond a band required to qualify a setup; 2 reproduces the stricter two-reading variant.
  • Trend Filter Length (default 200): the regime moving average drawn on the price chart.
  • Exit Average Length (default 5): the short average the resolution is read against.
  • Style toggles draw the trend filter, exit average and setup markers (default enabled) plus exit markers (default disabled), with the Gradient Fill (default enabled).

Frequently Asked Questions

How does RSI-2 compare with Connors RSI?

They come from the same short-term mean-reversion school. Connors RSI is a composite blending a short RSI with a streak component and a rank component, while RSI-2 is the raw two-bar oscillator plus the trading rules around it. The composite smooths the read; the two-bar line keeps the arithmetic transparent.

Why does a setup need the trend filter?

Because some pullbacks keep going. Buying weakness is only defensible in a regime that keeps producing recoveries — the filter blocks longs in downtrends and shorts in uptrends.

Can I use divergence on RSI-2?

Rarely usefully. A two-bar RSI saturates routinely, so divergence geometry carries little meaning — the line is built for threshold stretches; slower gauges host divergence work better.

Original indicatorBuilt in-house by LuxAlgo

The Library is free. Quant makes it yours.

Pull any concept or indicator into Quant: rebuild it, retune it, or turn it into a backtested strategy of your own.