Auction S/D Zones (Pivot + Volume + ATR) -S9Trader

Short Summary

Plots high-probability Supply & Demand zones from confirmed pivots, validated by volume and an ATR-impulse filter. Highlights the first retest, supports optional invalidation, and includes touch alerts. Works on any symbol and timeframe.

Script Description

What it does

* Detects swing highs/lows (confirmed pivots) and draws Supply (red) / Demand (green) zones.
* Confirms potential institutional activity with Volume > SMA × multiplier.
* Requires an impulse move at the pivot (range ≥ ATR × multiplier) to avoid weak swings.
* Extends zones to the right, highlights the first touch, and can invalidate zones on clean breaks.
* Provides alerts when price touches an active zone.

Principles (why it works)

* Auction Market Theory: Markets rotate between balance and imbalance; sharp moves often mark “unfair” highs/lows that react on retest.
* Supply/Demand Mapping: Swing highs tend to act as Supply on revisit; swing lows as Demand.
* Volume Confirmation: Above-average pivot volume suggests non-retail participation.
* ATR Impulse: Prioritizes pivots formed by meaningful range expansion, not noise.

How it works (logic)

* Pivot detection: `ta.pivothigh/low(leftBars, rightBars)` confirms a swing after rightBars candles.
* Zone construction: Supply = top at pivot high, bottom at max(open, close). Demand = bottom at pivot low, top at min(open, close). Optional minimum % height filter.
* Filters: `Volume > SMA(Volume, volLen) × volMult` AND `true range ≥ ATR × impATRmult`.
* Management: Keeps up to maxZones per side; highlights first retest; invalidates on decisive close through the far edge.
* Alerts: Triggers when the current bar intersects any active zone.

Inputs (recommended starting points)

* Pivot Left/Right Bars (5/5): Higher = stronger, fewer zones. Intraday: 3–6; Swing: 8–12.
* Volume SMA Length (20) & High-Volume Multiplier (1.5–2.0): Higher = stricter.
* ATR Length (14) & Impulse Multiplier (1.0–1.5): Higher = stricter.
* Min Zone Height % (0.05–0.15%): Skip micro-zones.
* Max Zones / Side (5–15): Reduce clutter & stay within object limits.
* Invalidate on Break: Remove “proven wrong” zones.
* Highlight First Touch: Emphasize the first interaction.
* Extend Left: Optional historical context.

How to use (playbook)

* Start with context: Identify the higher-timeframe trend/structure.
* Prioritize first touch: Reactions are typically strongest on the first revisit.
* Seek confluence: Favor zones aligned with trend or near HTF levels, VWAP/MA confluence, or round numbers.
* Risk: Place stops just beyond the zone; size so a clean break is tolerable.
* Targets: Mid-range, opposite side of the session’s rotation, or next HTF level; trail if momentum persists.

Alerts available

* Supply Zone Touch
* Demand Zone Touch

Notes & limitations

* Pivots confirm only after rightBars candles; zones appear at the confirmed pivot (no instant hindsight).
* Order flow/footprint is not available in Pine; bar volume is used as a proxy.
* Drawing objects are limited by TradingView; keep maxZones modest on long histories.
* Indicator only (not a strategy); backtesting requires a separate strategy script.

Changelog

* v1.0.0 — Initial release: pivots + volume + ATR impulse, first-touch highlight, invalidation, alerts, zone caps.

Disclaimer
For educational purposes only. Not financial advice. Trading involves risk—do your own research and manage risk.