A Descending Channel is a chart pattern formed from two downward trendlines drawn above and below a price representing resistance and support levels. The price will oscillate between these trendlines as buyers and sellers battle for control. A break below the support line signals that the bears have won, and the downtrend is likely to continue. Conversely, a break above the resistance line signals that the bulls are in control, and prices could rise further. Channels can be used to identify buying or selling opportunities, as well as potential areas of support or resistance.