The 20.9% jump in stock funds for 2003 has erased the perils of the recent bear market from investors’ memories, according to many industry analysts. And that might be a bad sign, Reuters reports.

The moral is for investors to keep their portfolios diversified. Stock funds, Reuters says, should be littered with companies large, small, national and international. Buying into bond funds isn’t a bad idea, either, as they gained significantly in the early 2000s when everything else lost.

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