RSI Bands

What are RSI Bands?

RSI Bands translate RSI thresholds into price. Instead of asking what RSI is at the current price, the construction solves Wilder's formula backward: given the smoothed gains and losses already on the books, what close would make RSI print exactly 70, or exactly 30, on this bar? Plotting those solved prices bar by bar draws two bands on the chart itself: an upper band marking the price at which RSI would reach the overbought threshold, and a lower band for the oversold one. Because Wilder's smoothing is recursive, the inversion is exact algebra, not an estimate.

The payoff is that threshold-watching moves from the oscillator pane to the price pane: you can see in advance where RSI would tip into an extreme, set alerts or resting orders at that level, and watch the bands widen or tighten as momentum conditions change. Derived measures treat the pair like any envelope: an RSI %B locates price within the bands, and an RSI bandwidth measures their separation. One naming caution: some sources use RSI bands to mean a different tool, deviation bands drawn around the RSI line in its own pane to create adaptive thresholds. The two share a name, not a construction, so check which one a chart is showing.

How traders use it

• As pre-positioned levels: because the bands state the exact price at which RSI would hit 70 or 30, alerts and limit orders can rest at the level instead of reacting after the oscillator prints the extreme.
• As a dynamic envelope: in an uptrend, tags of the lower band mark pullbacks deep enough to push RSI to oversold, while persistent riding of the upper band reads as trend strength rather than an automatic fade.
• As compression analytics: narrowing RSI bandwidth means a small price move would swing RSI between extremes, a low-energy state that often precedes expansion without saying when or in which direction, while %B tracks where price sits in the meantime.
• As adaptive thresholds, in the second sense of the name: bands around the RSI line replace fixed 70/30 with levels drawn from RSI's own recent distribution, so overbought means unusually high for the current regime.

RSI Bands vs similar constructions