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Beware of Index Fundamentalists Dylan Minor. Investing in index funds over actively managed funds is a subject of ongoing debate;
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Beware of Index Fundamentalists Dylan Minor • Investing in index funds over actively managed funds is a subject of ongoing debate; • Bogle : investors should invest in low-cost index funds. His findings suggest “ the magnitudes of difference (of Index over actively managed funds) are so large and so consistent as to devastate the concept of high cost active management”; • Implications are enormous – if index fund proponents are correct, it will make actively managed funds unattractive;
Beware of Index Fundamentalists • Bogle analyzed performance of each of the nine Morningstar investment classes in comparison to a matching risk-adjusted index fund over the period 1992-1996. • Purpose of this study is to reexamine Bogle’s claim by using a different set of data. The period covers 1990 – 1994. • Implications are enormous – if index fund proponents are correct, it will make actively managed funds unattractive;
Beware of Index Fundamentalists • Exhibit 1 - Morningstar Style Boxes • Exhibit 2 – Morningstar Returns and Risk 1990-94 • Exhibit 2 – Morningstar Sharp Ratio 1990-94 • Sharp Ratio = (R fund – R Risk free)/ Std. Deviation • Treynor Ratio = (R fund – R Risk free)/ Beta • Higher Sharp ratio indicates better risk adjusted rate of returns.
Value Blend Growth Large 0.385 0.361 0.369 Medium 0.441 0.440 0.482 Small 0.472 0.464 0.540 Beware of Index Fundamentalists Exhibit 3-Morningstar Sharp Ratios 1990-1994
Value Blend Growth Large 0.327 0.360 0.329 Medium 0.396 0.411 0.387 Small 0.496 0.349 0.209 Beware of Index Fundamentalists Exhibit 4-Index Fund Sharp Ratios 1990-1994
Value Blend Growth Large 17.79% 0.23% 11.95% Medium 11.23% 6.91% 24.32% Small -4.85% 32.82% 158.96% Beware of Index Fundamentalists Exhibit 5- Managed Fund Risk Adjusted Return Advantage 1990-1994 • Managed funds , except Small-Value performed better than index funds during the 1990-94 period.
Beware of Index Fundamentalists • What do these findings mean? • Avoid making general conclusions about capital markets on just 5 year data; • Bowen and Statman (1997) suggest analyzing 50+ years of data to definitively address this issue; do not have data for this long period
Beware of Index Fundamentalists • This issue may have a paradoxical conclusion: if Bogle is right, he will be wrong; and if he is wrong, he will be right. • If more people become convinced they can beat the market (Bogle is wrong), the more efficient the market becomes. Less likely they will outperform it. • If investors believe active management is a waste of money (Bogle is right), fund mangers will be replaced by index funds. Worsen market efficiency. The remaining fund managers will have a better chance of outperforming the market.