So, is the common advice still to just blindly pile into the S&P 500? It got beaten by almost every other G20 nation last year. Clearly the world markets are reacting to the instability being caused by the US. The USA is going in a very different direction than it has for the decades of American stock market over performance. Personally I think it's incredibly risky to not have a significant international portion of anyone's portfolio at this point. I have rebalanced to ~60/40 International/US in my equities given what I'm seeing happening in my country as an American.