Trendline A line on the price or value chart of a security depicting the general direction in which the security is headed. This chart shows an example of an upward trendline:
Investopedia Says: Many people believe that prevailing trends, either up or down, will determine where a security is headed. Trendlines can be used to analyze individual securities, such as stocks, commodities or indexes, among other things. Related Terms: Chartist Diamond Top Formation Reversal Sideways Trend Symmetrical Triangle Technical Analysis Technically Strong Market Technically Weak Market Trend Trend Analysis |