Speaking of Roth, you might want to know that I topped mine off two Fridays ago, which of course is what has the market in its current tailspin. It is invariably the case that this would happen. When I joined my new employer's 401K two years ago, the market performed badly shortly thereafter. When I opened this Roth in September, the market tumbled 7% over the next few weeks. And since I topped it off, the market is down nearly 4%.
Heads up to discount investors, I plan to fund my Roth for 2015 in March. Keep that in mind. Sell high, buy back low.
I fund our Roths with sales of company stock, which I get three times a year. Two of them are February and April, with most if it in the latter. So the February portion will take the hit but I'll buy at a discount in April. Balance!
I'll look into the ratios you provided - my thanks for those. I'm going to hold off on making any decisions until the first week in January, when the new investment options are added to my employer's retirement plan. At that time I'll flip those funds over to the S&P500 and then figure out the rebalancing portion from there.
When I read John Bogle's book on index investing (Common Sense on Mutual Funds) he took a dim view on international indexes. His reasoning was manifold, but part it was, with globalization US based companies are generating a large share of their revenue and profits from overseas. I forget the exact % from the book, I'm sure it's changing constantly. But the general thought was, if you buy the S&P500, you're already globally diversified to the extent that their revenues are generated globally. (There were other reasons as well.) Thus there is rapidly diminishing returns for further diversification. I think there's enough to it that I'm going to worry less about international diversification this year, and focus more on the big cap / small cap US mix when I rebalance.