Ask an Advisor: The S&P 500 Averages About 10.5% Per Year. Why Wouldn't I Invest My Entire 401(k) in it?

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The article discusses the historical performance of the S&P 500, averaging 10.5% annual returns, and questions why investors wouldn't invest their entire 401(k) in it. However, the article does not provide a clear answer, implying that there may be other factors to consider.

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Market impact analysis based on neutral sentiment with 76% confidence.

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Looking at long-term performance of the S&P 500, you might wonder why you wouldn't just invest your entire 401(k) in it. The numbers are compelling: The index has averaged about 10.5% per year historically, and its returns in recent years have been even stronger. So, why not just "go all in?" Do you have a […] The post Ask an Advisor: The S&P 500 Averages About 10.5% Per Year. Why Wouldn’t I Invest My Entire 401(k) in it? appeared first on SmartReads by SmartAsset.

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Original article published by Unknown on December 8, 2025.
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