Success may be spoiling some of America's biggest mutual funds.
Investors have poured $269 billion into stock mutual funds in the past 16 months, much of it into large, successful funds.
Trouble is, the fund managers are struggling to find a place for all that money.
Here's the problem: When a fund is small, it's easier to run. The manager can load up on favorite stocks without worrying about driving up the share prices.
But managers of giant funds with billions of dollars in assets can invest only a small percentage of those assets in any one stock, no matter how attractive.
The result: Watered-down portfolios, with big, clunky stocks used as parking spaces for cash.
So the best stock pickers sometimes have the hardest time making good on their ideas. For investors that difficulty often translates into low returns.
One option, experts say, is to find small, nimble funds with sterling managers. Sounds easy enough, but some funds are small precisely because they're losers.
And don't confuse small funds with funds that invest in small companies. Both can be fine, but be sure to do some research. Small-company stocks have had a tough time this year.
A recent issue of Morningstar Investor, a newsletter put out by the Chicago fund-rating company, came up with a couple of strategies.
1. Consider new funds whose portfolio managers have been successful elsewhere.
One example is Berger New Generation (800-333-1001; $2,000 minimum investment; 0.25 percent load), run by William Keithler.
He previously ran Invesco Small Company Growth Fund, and delivered an annualized return from 1992 to 1993 of 24.6 percent. That compares favorably with 14.9 percent, the average return for other small-company growth funds.