Roger G. Ibbotson Quotes & Sayings

That what's most relevant to you is whether and how you're doing something different from what everybody else is doing. — Roger G. Ibbotson

On average, 90 percent of the variability of returns and 100 percent of the absolute level of return is explained by asset allocation. — Roger G. Ibbotson

We can extrapolate from the study that for the long term individual investor who maintains a consistent asset allocation and leans toward index funds, asset allocation determines about 100% of performance. — Roger G. Ibbotson