Trend Signal - This is a short-term trend signal that uses Average True Range and the distance to the stock’s 20 day Moving Average. This indicator which we calculate every 15 minutes shows the stock in one of three states. Green - Up Trend, Red- Downtrend, Yellow - Oscillating. The latest Signal is furthest to the right and its trend history can be seen over time and should be viewed in tandem with the price chart.