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MT4 Indicator for Local Price Extremes and Support Levels

Article MQL5 code base

Summary

This beginner MetaTrader indicator marks candidate local tops and bottoms on a price chart with colored dots. It examines highs and lows over a configurable period and compares them with the surrounding trading range to decide whether an extreme is significant. The period setting controls how often marks appear: a longer period produces fewer dots, while the range-cut parameter makes dots more frequent as it rises. The bar-count setting determines how much chart history is processed.

The indicator repaints, so previously marked dot locations can change as new price data arrives. The document explicitly warns against treating a new dot as a direct buy or sell signal, and instead describes using the marks to quickly inspect possible support and resistance areas or as input when developing other indicators. No performance evidence is presented. Since the levels may shift, any breakout approach that uses them would need independent confirmation and testing. Versions are said to be available for both MT4 and MT5.

Key ideas

  • The indicator marks candidate local highs and lows based on a lookback period and their position in the trading range.
  • A longer calculation period produces fewer dots, while a higher range-cut setting produces more.
  • The indicator repaints, so marked extrema can move as new data arrives.
  • The dots are unsuitable as direct trading signals but may help identify provisional support and resistance areas.
  • The document gives no evidence of trading performance.

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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.