no, but it can give you a foundation to work on when you see the dollar going up, it may mean something to you even if you are not trading currencies or you see crude dropping, it may mean something to you if you are a gold trader you start putting these correlations together and look for places where they get out of whack some trade for a reversion to the mean others trade for the breakout hoping to catch many unaware
eurusdzn, I would have to agree with oldtime. The movement of the USD can create opportunities if you look for them. If the USD is going up then you can look at crude to see if it's moving down. I don't think I'd be buying both the USD and stocks at the same time as they typically have an inverse relationship with one another. This past week that's not been the case but sooner or later saner minds will prevail. Right now Wall Street is having a field day ignoring fundamentals but that will change at the first sign that something's wrong.