Have a look at this contrast. But see if you can understand the period I have market with question mark. As usual it is all GMT. US is four hours behind GMT, so the market there closes at 8pm GMT.
And below is what actually happened. Going back and looking at the aspects, you can see the close correlation to most of it. The areas where the correlation slips are shown too. And in hindsight you can see that some of the aspects should have been taken more seriously.
So that is why this is not perfect. But it is very interesting, and should be used in the right situations only.