the archetypal ideal of an index fund is that imaginary one piece of everything in the world.
Maybe in your mind. Not in mine. I think of indices (and index funds) as portfolios assembled under a particular set of rules. None of them tries to reach everything in the world, in fact a lot of them are designed to be quite narrow.
A fund is more “indexy” the more diversified it is.
I still disagree. An index fund’s most striking feature is that it invests passively, that is its managers generally don’t have to make any decisions, they just have to follow publicly announced rules. I don’t think a fund is more “indexy” if it owns more or more diverse assets.
In other words, when one buys index funds, what one is buying is diversity.
Sigh. Still no. You’re buying a portfolio composed under certain rules. Some of these portfolios (= index funds) are reasonably diversifed, some aren’t, and that depends on how do you think of diversification, too.
The “classic” index fund, one that invests into S&P500, is not diversified particularly well. It invests in only a single asset class in a single country.
An index fund’s most striking feature is that it invests passively, that is its managers generally don’t have to make any decisions, they just have to follow publicly announced rules. I don’t think a fund is more “indexy” if it owns more or more diverse assets.
Yup. Take an actively managed fund that seems to be indexy by ygert’s standards today. It might not be so indexy tomorrow.
Maybe in your mind. Not in mine. I think of indices (and index funds) as portfolios assembled under a particular set of rules. None of them tries to reach everything in the world, in fact a lot of them are designed to be quite narrow.
I still disagree. An index fund’s most striking feature is that it invests passively, that is its managers generally don’t have to make any decisions, they just have to follow publicly announced rules. I don’t think a fund is more “indexy” if it owns more or more diverse assets.
Sigh. Still no. You’re buying a portfolio composed under certain rules. Some of these portfolios (= index funds) are reasonably diversifed, some aren’t, and that depends on how do you think of diversification, too.
The “classic” index fund, one that invests into S&P500, is not diversified particularly well. It invests in only a single asset class in a single country.
Yup. Take an actively managed fund that seems to be indexy by ygert’s standards today. It might not be so indexy tomorrow.