I'll just leave this right here...
Cryptsy crossed today as well.
Um, all the green bars represent a positive macd.
Not quite, they represent when the macd is greater than the signal.
Look at the 1d chart and zoom out and you can see what I mean. The macd is plotted with the y axis being the numerical macd value, and the bars being it's relationship to it's signal.
Which by definition is a positive MACD. Its your wording that is off in terms of what you are pointing out.
http://en.wikipedia.org/wiki/MACDYou don't need to quote what it is, I know what it is. The histogram is visual representation of the difference between the macd line (the difference between two moving averages) and the signal line (moving average of the macd). When the macd line is above the signal line, it's a positive macd. What you are referring to is above the 0 line. The usage of this indicator isn't in what the actual value is but rather when it is postive/negative and when there are divergences between the indicator and price itself.
The histogram refers to bullish/bearish - not positive or negative. They may be conflated quite often, but the fact remains.
Most of the time the distinction doesn't matter, because most of the time MACD is a short term indicator. On the 5 minute chart there are 3 or 4 zero line crossovers in the last week. But over a longer period, it is a much rarer event.
In the history of darkcoin - at least being traded on mintpal - this marks the second time it's ever crossed the 1d macd zero-line.
My point? I understand why you're quick to say "The usage of this indicator isn't in what the actual value is but rather when it is postive/negative" because among day traders this is pretty much true.
But in the context I posted - it is far from it - the actual value - and numerically positive versus negative - is the _only_ importance.