> Investors have seen countless charts of US stock market performance which start in 1926 and end near the present. But US trading long predates 1926, and the foreshortened perspective that results from a focus on post-1926 data can be misleading.
> The goal is to challenge shibboleths about the expected outcomes of buy-and-hold stock market investing, and to raise questions about the expected performance of stocks versus bonds over long periods.
> Put another way, since 1928 dividends plus inflation accounted for 99.7% of the nominal wealth produced, as of 2008, by investing in stocks.
> Total return measured on the century scale presumes an investor who never needs to spend the dividends or interest received. No real investor, individual or institution, has that luxury. And there is one class of individual investor, now of growing importance within the financial planning literature as the Baby Boom generation ages, for whom the total return metric is particularly malaprop: retirees. Once portfolio accumulation ceases with retirement, portfolio income must be spent to live. Under those circumstances real price return, over short periods lasting two or three decades, becomes an important metric. By that measure, an investment in stocks has been dicey indeed.
---
Just to whet your appetite some more:
> Figure 4 [1] illuminates how much of the long-term return on stocks since 1926 has been due to sustained high inflation on the one hand, and to the favorable enhancement from re-investing dividends on the other. Under the one depiction, the portfolio returned about 9% compounded, from near the high in the Twenties to near the low in the Oughts; under the other, only about 1.5%.
> Few contemporary investors expect a multi-decade return on their stock portfolios of 1 2% per year. They have no reason to expect such poor results, because most investors have never seen a post-1926 chart of inflation-adjusted, price-only returns, and have rarely seen any charts extending back past 1896.