Counter-balancing international stocks

[carol-ann]

Hi, I have the entirety of my portfolio in developed and emerging stock ETFs (e.g., EFA/VEU, EEM/VWO). At the time I was thinking I am safe from a U.S. crisis but turns out I'm not at all.

I would like to add some other uncorrelated ETFs to it, but cannot find such.

Even things that should not be correlated seem to be (e.g., international real estate funds like WPS).

Bond ETFs seem to be even all the time. If the stocks crash 2% then the bonds gain 0.4% that day; doesn't help me much unless I want to put 90% in bonds which seems very conservative.

What am I missing?