Here in Spain "Commodity" word has morphed into and adjective and is sometimes used when referring to some good or service that used to be highly valued in the past but has become somehow coarse and vulgar in the present. Is curious but I believe "Commodities" are to play an important role in future financial markets though have received uneven levels of analyst's attention in the past.
We can see here how they have been closely participating in March rally but have detached a while ago. Today, as many other indices (i.e. Nasdaq Comp) it left an unfilled gap together with some signals of more downside risk. Let's include them into our toolkit of indicators to see how valuable their "advice" can be :)