Line on a graph which investors use to determine the time in which they should buy or sell a certain security in foreign exchange trading. These transactions take place according to the Moving Average convergence Theory, which recommends that foreign exchange traders sell an asset when it dips below the MACD line, and buy an asset when it moves above this line. Also known as MACD line. Also see Moving Average Convergence Theory.
Trigger Line. InvestorGuide.com. WebFinance, Inc. http://www.investorguide.com/definition/trigger-line.html (access:April 18, 2019).