Why Not Lose Those Mutual Fund Losers?

Lagging funds tend to keep bringing up the rear. Why is it, then, that investors are more likely to sell their winners?

As an investor, I'd love to see myself as Mr. Spock--supremely rational, making each portfolio move with a Vulcan's cool precision. The honest record shows something else. Even if I can figure out which mutual funds to buy, for example, I'm always nagged by doubts about whether--and when--to sell.

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