An ascending channel is the price action contained between upward sloping parallel lines. Higher pivot highs and higher pivot lows are technical signals of an uptrend. Trendlines frame out the price channel by drawing the lower line on pivot lows, and the upper line is the channel line drawn on pivot highs. Price is not always perfectly contained but the channel lines show areas of support and resistance for price targets. A higher high above an ascending channel can signal continuation. A lower low below the low of an ascending channel can signal trend change.