The Zig-Zag Extremity Tracker is a technical indicator that combines linear regression channels with ZigZag points to analyze market trends dynamically. It identifies extreme price points (highs and lows) marked by circles, which form the basis for drawing ZigZag lines and calculating regression channels. These channels are recalculated and reset whenever the price moves beyond their boundaries, ensuring the trend measurement adapts to current market conditions. When a new extreme is detected, the indicator adjusts the regression channel from that point. If the price stays within the channel bands, the channel extends; if the price breaks the bands, the channel is invalidated and a new one starts from the breakout bar. This approach helps visualize potential trend changes and highlights areas where price may revert toward the mean due to overextension or overselling. The indicator supports detailed trend analysis by dynamically tracking turning points and channel boundaries in real time.