Savvy investors have known for many years that small-cap stocks provide a good vehicle for boosting long-term performance. This has been even more true for international companies as it has been for U.S. ones.
Let’s see if the numbers back up that claim. (Hint: they do.)
In the 45 calendar years from 1970 through 2014, U.S. small-cap blend stockscompounded at 13%, compared with 10.5% for the Standard & Poor’s 500 IndexSPX, +0.47% , also a blend of value and growth.
While that’s impressive, in those same years, international small-cap blend stocks compounded at 14.6%.
These numbers are easier to comprehend if you calculate the growth of a hypothetical $100 initial investment in 1970. At the end of last year, that $100 would have been worth $8,845 invested in the S&P 500, or $24,486 in U.S. small-cap blend stocks, or $45,387 in international small-cap blend stocks.
In other words, investors in international small-cap blend stocks achieved more than five times the benefit, compared with investors in the S&P 500.
Even though the future will inevitably be different, these 45 years may provide a reasonably valid comparison among these asset classes. This 45-year period includes three major bear markets, three strong recoveries and a long period of economic expansion, especially in the U.S. stock market.
I’m not suggesting that international small-cap blend stocks are an alternative to either the S&P 500 or to U.S. small-cap blend stocks. While I recommend including equal parts of all these equity asset classes (along with equal parts of seven more), I want you to look for a moment at international small-cap blend stocks as a single way to diversify beyond the S&P 500 Index.
If in 1970 you invested that $100, dividing it equally between the S&P 500 and international small-cap blend stocks and rebalancing once a year, by the end of 2014 your compound return would have been 12.9% (versus 10.5% for the S&P) and your $100 would have grown to $23,508 (versus only $8,845 for the S&P 500 alone).
If those numbers don’t convince you of the long-term value of international small-cap blend stocks, I don’t know what it would take.