“Q. Some of the index fund providers today are charging operating expenses considerably higher than, say, Vanguard ever has. In fact, some are charging more than even active funds! Is there a limit to what one should ever pay for an index product? What should that limit be? A. I would draw the line at 0.20 percent in yearly operating expenses for a broad-market index fund. There's not much reason to pay more than that, and some broad-market index funds charge a lot more. A firm like Morgan Stanley, for example, charges what the traffic will bear, getting away with murder, and their investors are losing greatly in the process. [Author's note: The Morgan Stanley S&P 500 Index fund, A class (SPIAX), charges a front load (commission) of 5.25 percent, a net expense ratio of 0.64 percent, and a 12b-1 fee (ongoing marketing fee) of 0.24 percent.] It's absurd. The whole success of indexing depends on low cost. And there's no reason to charge a lot of money for an index fund, as the fund requires no management. In the case of international developed-world funds, I'd draw the line at 0.30 percent. And in the case of emerging markets, I wouldn't pay more than 0.40 percent. That's not to say that costs should be your only consideration in choosing an index fund — you also want a fund issued by a solid company with good people at the helm — but costs should always be paramount.”