If you follow the financial press at all, be it the Financial Times, The Wall Street Journal, Business Insider, CNBC, CNN Business, Patrick Boyle, or Morningstar, there are two things you've heard over and over about the SpaceX IPO: the current valuation is absolutely insane based on the fundamentals, and a huge number of passive investors are about to be forced to buy the stock.
The potential undermining of index funds, without question the most important innovation of the past 50 years for democratizing investments, has gotten so bad that Burton Malkiel, the author of the 1973 classic A Random Walk Down Wall Street, has, at the age of 93, taken to the pages of The New York Times to argue that, as bad as SpaceX is as an investment and as reprehensible as Elon Musk is as a person, the concept of index funds is still worth saving.
Given that so many millions of Americans are suddenly having SpaceX shares foisted upon them, I understand why some financial experts are criticizing the practice of index investing itself. Right now, just a handful of A.I.-related stocks represent almost half the value of the total stock market index. If A.I. stocks collapse, so will the worth of your index fund.
There are few individuals more responsible for the popularity of index funds than I am. I wrote a best-selling book about them and have argued for this investment strategy for over 50 years. In this fraught moment, I want to explain what you should do to protect your wealth. And, for the hard-core anti-Musk faction among us, I offer solutions to salve your conscience.
Let’s return to the argument against index investing. Many investment professionals consider SpaceX the poster child of the A.I. bubble. Investor fervor pushed the valuation of the company to approximately $2.1 trillion by the close of trading Friday — far more than even the most generous traditional valuation standards. The more generous the valuation, the bigger share of the stock market it captures, so SpaceX would immediately become one of the biggest holdings in the market.
Unlike prior initial public offerings, SpaceX shares are already so expensive there isn’t a lot of upside potential left. When Facebook, now Meta, went public in 2012 with a valuation of $100 billion, shareholders were able to benefit financially from its growth to a $1.5 trillion giant. Amazon went public with a generous (for 1997) valuation of $440 million, and shareholders profited as it grew into a $2.5 trillion behemoth. Not so SpaceX. Because it was owned by private investors for so long, much of the gain will immediately be handed off to its venture and private equity backers rather than preserved for new investors.
Moreover, unlike other public companies, SpaceX is employing a dual class share structure that gives Elon Musk essentially complete control with no independent oversight. Public shareholders will, comparatively, have no voice in corporate decisions. Mr. Musk controls multiple related corporate enterprises, raising the possibility of conflicted transactions within the Musk ecosystem. Many investors will be uncomfortable giving him so much power and holding an index fund in which he has so large a share.
These are all legitimate reasons to worry. But in my view, it would be a mistake to abandon an indexing strategy. Timing the market is impossible. Yes, the stock market is unusually concentrated today, and it is likely to get even more so over the next period with Anthropic and OpenAI looking to go public soon.
But the market has always been concentrated. If you had invested broadly in the stock market of the late 19th century, a lot of your money would have been tied up in railroad stocks. In the late 1970s, a bunch of it would have been in oil stocks. In the late 1990s, a disproportionate share would have been in internet stocks. The overall market’s generous 10 percent investment returns over the past 100 years have been generated by less than 4 percent of all stocks. The rest have not earned returns any greater than the yield on short-term Treasury bills.
Even when the market is down, index funds outperform. From mid-1999, near the top of the internet bubble, to mid-2000, when the market bottomed out, index funds did better than actively managed funds that try to pick and choose the best stocks to hold. S&P published recent results for its index in March. Last year about 80 percent of actively managed equity funds produced returns inferior to the S&P 500 index. And the few funds that outperform in one year are not the same as those that win the next year. When the results are compounded over five-, 10- and 20-year periods, over 90 percent of active equity funds underperform the stock market index. Indexing has proved to be the best investment strategy for building wealth.
I recognize, however, that investing is an emotional decision as well as a financial one. And some investments, even the financially sound ones, may make people morally uncomfortable, especially if they dislike some of Mr. Musk’s business and public policy activities.
So what can you do if you believe that owning SpaceX is morally indefensible? While there is no perfect replacement for an index fund, there are some alternatives to consider.
Obviously, I'm reluctant to disagree with the father of index funds (as previously mentioned, probably the best and most important innovation in investing of the past fifty years) on this, but I am far less sanguine about the near future of these financial institutions in a time of unprecedented market scams and irrationality.
These institutions work in large part because they are supported by public trust, uncompromised regulators, and reasonably high standards. We spent most of the 20th century building these things, and we've spent much of the 21st tearing them down.
While there is blame to go around on both sides, the culprits fall disproportionately into certain groups: the Republican Party, following trends that started with Gingrich and kicked into high gear with Trump; whiny, entitled billionaires, most of whom lucked into their huge fortunes; Silicon Valley visionaries and tech messiahs whose constant flood of self-serving fantasies were passed on by credulous journalists.

