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Index Concentration Causes Investor Concern

Why does it happen, and what steps can you take?

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Christine Benz: Hi, I'm Christine Benz for Morningstar. Are major indexes getting more concentrated in their top holdings? Joining me to discuss that topic is Ben Johnson. He is Morningstar's global director of ETF research.

Ben, thank you so much for being here.

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Ben Johnson does not own shares in any of the securities mentioned above. Find out about Morningstar’s editorial policies.