The Advanced Momentum Library: Fisher, QQE, Connors RSI & 25+ More

If RSI, MACD, and Stochastic are the momentum starter kit, this is the full toolbox: every advanced oscillator in the Setup.Cash engine, available in the strategy builder and Indicators Lab.

Sharpened Classics

• Fisher Transform: reshapes price into a near-Gaussian distribution so turning points show up as sharp, unambiguous spikes.
• RSX (Relative Strength Xtra): Jurik's noise-free RSI — same scale, dramatically smoother.
• Connors RSI: blends a short RSI, streak length, and rank of the day's change — built for short-term mean reversion.
• QQE (Quantitative Qualitative Estimation): smoothed RSI plus an ATR-style trailing band; fires on band crosses rather than fixed levels.
• Stochastic Momentum Index (SMI): stochastic measured from the midpoint of the range — cleaner centering than %K.
• Fast Stochastic (STOCHF): the raw, unsmoothed stochastic for quick triggers.
• KDJ: the stochastic's East-Asian cousin adding a J-line that overshoots for early warnings.

Price Oscillators

• Awesome Oscillator (AO): Bill Williams' 5/34 midpoint-price histogram; the twin-peaks and zero-cross patterns are classic entries.
• Percentage Price Oscillator (PPO): MACD normalized to percent — thresholds transfer across symbols.
• Absolute Price Oscillator (APO): the raw fast-minus-slow EMA difference.
• Detrended Price Oscillator (DPO): removes trend to isolate the cycle; useful for measuring cycle length.
• Pretty Good Oscillator (PGO): distance from an SMA in ATR units — "how stretched are we, in volatility terms?"
• Chande Forecast Oscillator (CFO): percent difference between price and its linear-regression forecast.
• Center of Gravity (CG): Ehlers' zero-lag cycle oscillator.
• Schaff Trend Cycle (STC): MACD run through a double stochastic — an early-turning trend/momentum hybrid.
• True Momentum Oscillator (TMO): momentum measured from open-to-close positioning, double-smoothed.

Strength & Sentiment Gauges

• Relative Vigor Index (RVGI): compares close-vs-open to the bar's range — conviction of each session.
• Balance of Power (BOP): (close − open) / (high − low), the simplest per-bar buyer/seller score.
• Elder Ray Index (ERI): bull power and bear power around an EMA — who's winning at the margins.
• Bias: percent deviation of price from its moving average.
• BRAR (AR/BR): sentiment pair comparing ranges around the open and the prior close.
• Psychological Line (PSL): simply the percentage of up closes in the window — crowd optimism as a number.
• Qstick: average of close-minus-open; persistent candle color quantified.
• Inertia: RVI-based momentum with linear-regression smoothing — trend "mass in motion".
• Exhaustion Count (EXHC): counts consecutive closes beyond prior closes, TD-Setup style, to flag stretched runs.
• Even Better Sinewave (EBSW): Ehlers' cycle-phase wave for timing swings inside a range.

Rate-of-Change Utilities

• Log Return / Percent Return: bar returns in log or percent form — the raw material for statistical rules.
• Decay: exponentially fading impulse line, useful for cooling-off logic after signals.
• Increasing / Decreasing: boolean streak detectors — "has X risen N bars in a row?" as a condition primitive.

Using Them

Every oscillator here accepts a length input and plugs into conditions like any built-in. Start from a simple base (our ROC guide covers the foundations), add one refinement at a time, and backtest each addition — sophistication only earns its keep when the metrics say so.