2002issue C011-2
Combining Bollinger Bands, RSI, and a stop-loss
Read stretch on a standard-deviation envelope, ask the relative strength index for a second opinion, and keep a stop-loss in force because either stretch reading can persist while price continues.
- A standard-deviation envelope is drawn around a moving average from measured dispersion, so the bands widen and narrow when variability changes rather than sitting at a fixed percentage offset.
- Price at or beyond a band is only a possible stretch reading, and band contraction after variability falls is described as often preceding a sharp price change.
- The relative strength index can print conventional stretch lines while price keeps advancing or declining, so the oscillator is incomplete without another check.
- A confirmation stack cross-checks the envelope with the oscillator and keeps a predefined stop-loss in force so a failed single-indicator reading does not leave exposure unbounded.
A confirmation stack, not three separate calls
In this TradersWeek editorial reading, the archive workflow is taught as a confirmation stack. Stretch is read on a volatility envelope, a bounded momentum oscillator is asked for a second opinion, and a stop-loss stays in force because either sensor can remain extreme while price continues.
The archive itself describes the oscillator as meant to be cross-checked with the volatility envelope and with stop-loss protection so that a failed single-indicator reading does not leave exposure unbounded. The label confirmation stack is editorial. It is not an archive name for a packaged system.
How the volatility envelope is drawn
A standard-deviation envelope is drawn around a central moving average, commonly computed over twenty sessions, by placing the outer lines two standard deviations above and below that average.
The envelope uses measured dispersion around the average rather than a fixed percentage offset such as three percent, so the bands can widen and narrow when variability changes.
Dispersion for the bands is obtained by averaging the squared gaps between price and its n-period simple moving average, taking the square root, and then multiplying by the chosen coefficient.
Stretch, contraction, and travel between the bands
Price at or above the upper band is treated as a possible upside stretch, and price at or below the lower band as a possible downside stretch. Either case is a stretch reading, not a finished decision.
A contraction of the bands after variability falls is described as often preceding a sharp price change. A move outside the bands is described as consistent with continuation of the existing trend.
Highs or lows printed outside the bands and then followed by highs or lows printed back inside are treated as a possible reversal cue. A swing that starts at one band is treated as often traveling toward the opposite band.
A second opinion from the oscillator
The relative strength index is a bounded momentum oscillator that compares average up closes with average down closes over a typical fourteen-session lookback. It sits near fifty when those averages match, and it uses seventy and thirty as conventional stretch lines.
Those oscillator stretch lines can appear while price keeps advancing or declining, so the reading is incomplete without another check.
Keeping a stop in force
The oscillator is meant to be cross-checked with the volatility envelope and with stop-loss protection so that a failed single-indicator reading does not leave exposure unbounded.
A stop-loss, in this pairing, is a predefined exit that keeps a loss bounded if a stretch reading from the envelope or the oscillator fails.
Editorially, the three sensors are used together so that no single reading authorizes an unbounded decision. The envelope can stay wide, the oscillator can stay stretched, and price can keep moving. The stop remains the bound on that failure.
All readings on this track · 45 readings
- 1992Constructing volatility-scaled bands with relative strength index confirmation
- 1994Implied volatility as a band-defined regime filter for index options
- 1995Constructing projection bands from least-squares slopes
- 1995Constructing regression projection bands and range oscillators
- 1996Constructing Bollinger bands, percent-b, and stochastics
- 1996Constructing mechanical rules from Bollinger Bands and stochastics
- 1996Constructing a standard-error envelope around a linear regression
- 1996Dual-horizon ratio envelopes and regression error channels
- 1997Rational group structure with a trend screen, RSI, and bands
- 1997Asymmetric volatility band construction
- 1998Constructing three-state filters from Bollinger band envelopes
- 1999Combination filters with Bollinger Bands and the relative strength index
- 1999Constructing stochastic timed exits and band-RSI reversals
- 1999Evaluating Bollinger Bands against fixed-width and range-based envelopes
- 2000Constructing a Bollinger Band target as a forward price
- 2001Numeric candlestick encoding with local size bands
- 2001Ranked candlestick sentiment to band-cross entries
- 2002Combining Bollinger Bands, RSI, and a stop-loss
- 2002Bollinger Bands remain filters, not forecasts
- 2002Constructing a stochastic RSI with Bollinger bands
- 2002Constructing a StochRSI and Bollinger mechanical system
- 2003Constructing volatility-scaled Bollinger envelopes
- 2003Why tick breadth fails as a market personality
- 2005Constructing Bollinger bands versus fixed trading bands
- 2006Squared versus absolute deviation in envelope construction
- 2006Confirming yen crossovers with implied volatility and bands
- 2006A daily candle reversal is a hypothesis until shorter sessions fail at the same zone
- 2008Rebuild the Relative Strength Index as price-scale bands
- 2008Reading Relative Strength Index extremes on one price axis with Bollinger Bands and moving averages
- 2011Three-filter confirmation for short-swing futures
- 2011Constructing an inverse Fisher stochastic with bands and averages
- 2012Constructing a Bollinger Band indicator suite
- 2012Stacking price extremes, crossovers, bands, and MACD
- 2012Adaptive Bollinger band impulse, trend, and momentum filters
- 2013Rescaling stochastic, percent-B, and wave-count parameters
- 2014Industry-group quartile pivots as a Bollinger Bands case study
- 2014Bollinger Bands as adaptive price envelopes: a 2014 classroom case
- 2016Trend-channel entry rules from stacked moving averages
- 2016A permission stack for Bollinger, RSI, and the 50-period average
- 2017Constructing weighted Bollinger bands and volume averages
- 2017Four swing-entry rules that share a timed exit
- 2017Two-wave monthly cycles as a regime filter
- 2019Constructing exponential-deviation-bands from a midline-average
- 2020Critiquing exponential variants of Bollinger Bands
- 2020Constructing selectable volatility and moving-average bands