Trade Sharing: You have probably seen or heard of Gann Theory and Elliott Wave Theory, but for ordinary traders like us, they are of little practical use. Now I will introduce my Traffic Light Theory. First, delete all technical indicators on your chart, including KDJ, MACD, Bollinger Bands, Moving Averages, and all other technical indicators. All technical indicators are lagging and not very useful. For example, if the current KDJ indicates a rise, MACD indicates a fall, Bollinger Bands indicate a rise, and Moving Averages indicate consolidation, delete these indicators and only keep two colors: red and green.