For today's chart we've chosen to take a look at GM because it has fallen below a medium-term trendline. As you can see from the chart below, the drop below the ascending support will be used by technical traders to suggest that the downward momentum may continue. Notice how the volume on the bottom of the chart has increased since the price has moved below the support near $33.50. This spike in volume will be used as confirmation by the bears of the expected move lower.