The Zig-Zag indicator is extremely effective in filtering short-term noise and identifying significant trends and significant changes in market prices.
Below is a chart of the E-mini S&P 500 Futures contract that illustrates how effective the Zig-Zag indicator was in finding areas of support and resistance and price breakouts:
The chart above of the e-mini uses a 5% Zig-Zag retracement value; therefore, only price changes of 5% or greater are shown, helping a long-term trader or investor determine important areas of support, resistance, and areas of price breakouts.
On the left of the chart, the S&P 500 was forming a triangle consolidation pattern. When prices broke resistance, a long-term buy was generated. During the middle of the chart, the Zig-Zag indicator was effective in illustrating that the S&P 500 was in an upward price channel. Buying in areas where price touched the lower support trendline and selling when prices touched the upper resistance line would have proved extremely profitable.
Using the Zig-Zag indicator for shorter-term trades can prove profitable as well. The chart below of Intel (INTC) shows a classic chart head and shoulder pattern easily seen by the Zig-Zag indicator ($1 retracement):
The easily identified head and shoulders pattern gave a sell signal when price on the right shoulder broke the upward slanting trendline.
The Zig-Zag indicator is an excellent technical analysis tool for identifying classic charting patterns. The Zig-Zag indicator is also effective in reducing noise and helping the technical trader see the true market direction.