Market Structure

AMT Reaction Zones

Retracement zones from price rotations with impulsive move filtering

Draws retracement-based support and resistance zones from swing points. Zones represent the locations where price is most likely to react — the retracement levels of the prior impulsive move. Features configurable percentage levels, automatic invalidation, expiration, and overlap management.

AMT Reaction Zones on a Sierra Chart

The Concept

After an impulsive move, price tends to retrace a portion of that move before continuing. Reaction Zones identifies these retracement areas by computing configurable percentage levels from each swing leg. These zones represent high-probability reaction points — where patient traders wait for price to come to them rather than chasing.

How to Read It

Buy zones (blue) and sell zones (red) are drawn as shaded rectangles on the chart.

  • Buy zones appear below price after a swing low — areas where longs are likely to trigger
  • Sell zones appear above price after a swing high — areas where shorts are likely to trigger
  • Zones are automatically invalidated when price trades through them completely
  • Tighter percentage levels (closer to the swing point) represent stronger reaction areas

Practical Tips

Use ATR-Based rotation mode to adapt zone generation to current volatility. The Min Range filter prevents zones from being drawn on insignificant swings. Enable zone expiration to automatically remove stale zones after N bars. The overlap mode controls how overlapping zones are handled — helpful for keeping the chart readable.

Input & Settings

1Rotation Mode

How the swing reversal amount is determined. Manual = fixed value. ATR-Based = derived from ATR. Default: ATR-Based.

2Rotation

Fixed reversal amount in points when using Manual mode. Default: varies by instrument.

3ATR Period

ATR lookback period when using ATR-Based mode. Default: 14.

4ATR Multiplier

Multiplier applied to ATR for the reversal threshold. Default: 1.5.

5Sell Zone 1 (%)

First retracement percentage for sell zones. Default: 50.

6Sell Zone 2 (%)

Second retracement percentage for sell zones. Default: 61.8.

7Buy Zone 1 (%)

First retracement percentage for buy zones. Default: 50.

8Buy Zone 2 (%)

Second retracement percentage for buy zones. Default: 61.8.

9Max Visible Zones

Maximum number of active zones displayed simultaneously. Default: 10.

10Enable Expiry

When enabled, zones expire after a configurable number of bars. Default: No.

11Expiry Bars

Number of bars before a zone expires (when expiry is enabled). Default: 200.

Subgraphs

1Rotation

Default: Ignore. Internal swing computation. Zones are rendered as chart drawings.

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This study is part of the AMT Toolkit — a free collection of Sierra Chart studies for orderflow, market structure, and chart utilities.

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