And in any case, it's up to you to decide which stocks to sell and which to replace. But if you're willing to do a bit of weeding from time to time, it can be a good way to invest. If you do decide to create your own portfolio, pay attention to changes in the index. The Russell indexes make their changes June 30. Additions to any index can be valuable over time.
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The portfolios, like the indexes, give more weight to big companies, but underplay some of the decade's hottest stocks. Frank Russell Co. Investing appears Fridays.