Basic correlations

[chisness]

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You can't think of 5 basic correlations? This should be easy...

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I'm sure with some research I could find 5 good ones, but since this is going to be over a non-small time period, I want to make sure I get some unique/interesting ideas (thank you for yours)

Also, PRE:
2) can you explain this -- what "mean" are the valuations above/below?
4) correlation between which stock returns?

http://bigpicture.typepad.com/commen..._vs_multi.html
This article talks about how the market is like chaos and looking at just one factor is pretty pointless for the market as a whole