As you'll notice when you look at a chart, market prices do not generally rise or fall in straight lines over a period of time, but rather in a series of zigzags. The price will rise to a peak or a high, then drop to a trough or low. Despite this, the market will usually move in one overall direction or trend, and it's the relative positioning of the peaks and troughs that define this trend.
There are three types of market trend:
|Uptrend||For a market to be in an uptrend, each successive peak must be higher than the last, and each trough must also be higher than the preceding one.|
|Downtrend||For a market to be in a downtrend, there must be a series of successively lower peaks and lower troughs.|
|Sideways trend||In a sideways trend there's no clear pattern to the peaks and troughs, with the price generally oscillating in a fairly narrow range between support and resistance levels.|
Trends are fairly easy to plot on a chart - all you need to do is connect two major peaks or two major troughs with a line. If you've drawn them correctly, trend lines will often act similarly to support and resistance levels. However, you should note that:
Channels are an extension of trend lines and are another way of identifying buying and selling areas on a chart. To create a channel, you need to draw two trends lines - one joining peaks and one joining troughs.
Once drawn, the bottom of the channel can be used as a buying area, while the top can be employed as a selling area (unless you're looking to profit from breakouts of course, where the reverse holds true).