The MACD is a tool used to identify trends in stock prices. It is the difference
between the twelve and twenty six day exponential moving average. A positive value indicates
that the value of the stock has risen more in the short term than the long term. A zero value
would indicate that the exponential moving averages are the same for the two periods. Negative
MACDs show that the stock has gained less value in the short term than it has in the long term.
To help with the interpretation of this number another value called a signal is plotted. The signal
is the exponential moving average of the MACD over the past nine days. When the MACD is