Volatility

1. Introduction The Keltner Channel, first described by Chester Keltner in 1960 and later refined by Linda Raschke, is a volatility-envelope indicator that shares structural similarity with Bollinger Bands but differs fundamentally in how it measures dispersion. Where Bollinger Bands use the standard deviation of closing prices, Keltner Channels employ the Average True Range (ATR), yielding a smoother and often more stable envelope. This article examines a breakout strategy built on the Keltner Channel, with particular emphasis on: ...

1. Introduction Bollinger Bands, introduced by John Bollinger in the 1980s, remain one of the most widely used volatility-based indicators in quantitative trading. The core idea is straightforward: price tends to oscillate within a range defined by its own recent volatility, and extreme deviations from the mean often signal the beginning of a sustained trend rather than a mere aberration. This article examines a breakout strategy that combines three technical indicators in a coherent framework: ...

Introduction The Relative Strength Index (RSI) is one of the most widely used momentum oscillators in technical analysis. As a standalone signal generator, however, it suffers from a chronic problem: in low-volatility, mean-reverting markets, RSI oscillates frequently around its midpoint, producing a stream of false breakout signals that accumulate losses through transaction costs and adverse fills. The ATR-filtered RSI breakout strategy addresses this deficiency by requiring that market volatility, as measured by the Average True Range (ATR), exceed its recent average before any RSI signal is acted upon. The intuition is straightforward: breakouts that occur in low-volatility environments are likely to be noise, while breakouts accompanied by expanding volatility carry a higher probability of persistence. ...