SpaceX in your index fund, explained

This article explores the mechanics of index funds and addresses concerns regarding the potential inclusion of volatile companies like SpaceX. It argues that index funds remain a stable investment strategy despite the inclusion of individual high-risk stocks.
Why it matters
Understanding index fund stability is crucial for retail investors who rely on these vehicles for long-term retirement planning.
Index funds are touted as one of the safest ways to invest. Rather than picking and choosing individual stocks, index funds let you bet on the market as a whole. So what happens when a company like SpaceX — a giant gamble, and, in my opinion, terribly overpriced — is fast-tracked into the Nasdaq-100? Does it suddenly threaten the stability of index funds based on the Nasdaq-100? Can a $1.77 trillion IPO crater the retirement funds of regular people who would ordinarily have no interest in investing in Elon Musk’s meme stock?
The answer has less to do with SpaceX and more to do with index funds — how they work, their history, and why they’ve been treated as one of the least risky ways to interact with the stock market. So I talked to Burton Malkiel, one of the people most responsible for the rise of the index fund.
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