The anticipation surrounding SpaceX’s upcoming initial public offering (IPO) is rapidly escalating, with the company poised to raise a staggering $75 billion at a valuation of $1.77 trillion on June 12. The shift in SpaceX’s market presence is expected to have significant ramifications across major investment frameworks, including widely held exchange-traded funds (ETFs) and stock market indexes.
Initially, there were expectations that SpaceX would swiftly secure a place in the S&P 500, but recent announcements from S&P Dow Jones Indices have dashed those hopes. In a press release dated June 4, the company made it clear that SpaceX, along with other tech giants like Anthropic and OpenAI, would be required to wait at least 12 months post-IPO before being eligible for inclusion in the prestigious index.
In light of this development, attention turns to two of the largest ETFs by net assets: the Vanguard S&P 500 ETF and the Vanguard Total Stock Market ETF. Both funds maintain minimal expense ratios of 0.03%, offering investors low-cost market exposure. While the Vanguard S&P 500 ETF mirrors the S&P 500 index, the Vanguard Total Stock Market ETF boasts a broader scope, tracking the CRSP U.S. Total Market Index with a total of 3,494 holdings.
Despite their similar expense structures, the weighting of holdings diverges between the two ETFs. For instance, in the Vanguard S&P 500 ETF, heavyweight stocks like Nvidia and Alphabet carry weights of 7.9% and 6.5%, respectively. In contrast, their counterparts in the Total Stock Market ETF see slightly reduced proportions, enabling a wider range of smaller companies to share the investment allocation.
The upcoming IPO introduces complexities to how these funds will adjust to incorporate SpaceX. The Vanguard S&P 500 ETF will not be able to purchase SpaceX shares until they are formally included in the index. Conversely, the Vanguard Total Stock Market ETF is expected to acquire SpaceX stock shortly after the IPO, operating based on available shares rather than market capitalization.
As additional shares become available for trading through potential insider sales, the concentration of SpaceX stock within the Total Stock Market ETF is anticipated to rise. If SpaceX eventually gains entry into the S&P 500 post the one-year waiting period—projected for June 2027—the weighting in the S&P 500 ETF will likely reflect its market cap at that time.
For investors seeking immediate exposure to rapidly growing companies like SpaceX, the Vanguard Total Stock Market ETF presents a more favorable option. On the other hand, for long-term potential, those considering the Vanguard S&P 500 ETF may find themselves waiting longer to benefit from such IPOs.
As the IPO approaches, investors are weighing their options. Analysts have flagged that promising alternatives exist outside of these ETFs, emphasizing the potential for higher returns from specific stocks identified by investment research firms.
With a landscape marked by rapid technological advancements and a keen interest in AI-driven companies, the unfolding situation with SpaceX promises to reshape the investment horizons for many. Investors are encouraged to keep a close eye on the developments surrounding the IPO and to strategize their investment choices in response to its implications.


