Concept family
Momentum & Oscillators
RSI, stochastics, MACD and the full oscillator grammar — divergence included.
Momentum indicators measure the speed of price change rather than price itself: how hard buyers or sellers are pressing, and whether that pressure is building or fading. The traditional premise, useful but far from infallible, is that speed tends to fade before direction turns, so these oscillators are read both to confirm a move and to warn when it is running out of force.
The family is built around a few long lineages: RSI and its refinements, the stochastics, and MACD with its descendants, alongside plain rate-of-change measures and a long roster of standalone named oscillators. DeMark's counting studies pursue the same exhaustion points by a different route, replacing smoothed lines with rule-qualified bar counts. Across all of them runs a shared reading grammar of overbought and oversold zones, centerline behavior, and divergence.
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RSI
Wilder's 0-to-100 oscillator is the library's most-referenced momentum concept and the base ingredient for a whole family of variants, bands, and reading rules.
54 indicators
MACD
The distance between two exponential averages, tracked with a signal line and histogram, straddling the line between trend and momentum measurement.
3 indicators
Regular Bullish/bearish Divergence
Price sets a new extreme while the oscillator fails to confirm it, a widely watched though fallible warning that the move behind the extreme is weakening.
6 indicators
RSI family
Wilder's Relative Strength Index and the many tools derived from it, including Stochastic and Connors variants, adaptive versions, bands, and reading rules such as range shifts and failure swings.
Stochastics
The %K and %D oscillator popularized by George Lane, with double, adaptive, and momentum-index variants, each measuring where the latest close sits relative to its recent high-low range.
MACD lineage
Gerald Appel's moving average convergence/divergence and its descendants, including percentage, zero-lag, impulse, volatility-adjusted, and volume-weighted versions.
Rate-of-change cluster
Momentum at its plainest: raw and percentage price change, plus the smoothed composites built from them such as TRIX, the Know Sure Thing, and the Coppock Curve.
Classic single-name oscillators
The broad canon of standalone oscillators, from CCI, Williams %R, and the Awesome Oscillator to Ehlers designs like the Fisher Transform, each scaled differently but read in familiar ways.
Exhaustion-count cluster (DeMark)
Tom DeMark's counting studies, led by TD Sequential, which flag possible trend exhaustion once a prescribed sequence of qualifying bars completes.
Oscillator grammar (cross-cutting)
The shared vocabulary for reading any oscillator: overbought and oversold zones, centerline regimes, thrust, and above all divergence between price and momentum.