Trendless OS Histogram (MT4)

Trendless OS Histogram is a zero‑centered oscillator designed to strip out trend and emphasize short‑term swings. The histogram makes mean‑reversion vs breakout conditions obvious with zero‑line flips, outer‑band extremes and volatility contraction/expansion in MetaTrader 4.

What it shows

• Detrended/Trendless oscillator histogram around zero (bull above / bear below).
• OB/OS levels and optional band width as a volatility gauge.
• (Optional) arrows/alerts — zero flips, level exits/returns, slope changes, squeeze breakouts.

Trade ideas

1. Range fade: when the histogram oscillates around zero, fade outer‑band spikes back to mid/zero.
2. Squeeze breakout: during narrow bands/low width, trade the first strong expansion + zero flip.
3. Trend‑aware fades: in an uptrend, prefer buying red dips that fail to go below zero (mirror for downtrend).
4. (Optional) Divergence: fade price HH/LL that lack confirmation from the oscillator.

Inputs that matter

• Base period — swing window (responsiveness vs stability).
• Smoothing — reduces noise vs lag.
• Levels — OB/OS and zero reference.
• Alerts — flips, exits/returns, slope, squeeze.
• Colors/widths — quick visual read.

Suggested usage

• M5–M15: range fades and squeeze breaks.
• M30–H4: trend‑aware mean reversion and pullbacks.
• Daily+: regime/risk tilt map.

Installation (MT4)

1. Open MetaTrader 4 → File → Open Data Folder.
2. Copy trendlessos-histogram.ex4 to MQL4/Indicators.
3. Restart MT4 (or refresh Navigator) and attach Trendless OS Histogram.
4. Tweak inputs → OK.

FAQ

Does it repaint? No on closed bars.
Use in EAs? Yes, via iCustom.
Markets? FX, indices, metals, crypto — anything on MT4.

Disclaimer: Test on a demo account first; risk management is essential.