Key Takeaways:
Stock-index providers are rewriting their own rules to ensure the market’s hottest and largest initial public offerings, including SpaceX and OpenAI, can be included in their benchmarks with unprecedented speed.
“If what you want from your index fund is access to the latest hot stocks, you’re in luck,” James Mackintosh wrote in The Wall Street Journal. “The passive funds holding trillions of dollars of 401(k)s and other investments are rushing to change their rules as the IPOs of SpaceX, OpenAI and Anthropic draw closer.”
The proposed and implemented changes from S&P Dow Jones Indices and Nasdaq would fast-track the entry of mega-cap IPOs into the market’s most-tracked benchmarks. S&P has proposed cutting its one-year waiting period to six months and dropping its profitability requirement for IPOs big enough to make the top 100. Nasdaq has already implemented a 15-day fast-track entry for large IPOs and adjusted its weighting rules, a move that stands to immediately benefit British chip designer Arm Holdings.
At stake is how trillions of dollars in passive investment funds are allocated. The accelerated inclusion of giants like SpaceX, which is reportedly discussing a valuation near $1.75 trillion, means index-tracking funds such as the popular Invesco QQQ Trust (QQQ) would be required to buy these stocks far sooner and in larger quantities than ever before, reshaping the composition and risk profile of the market’s core benchmarks.
S&P’s proposal, currently under consultation, would create a two-tiered system. Giant IPOs could sidestep the current requirement to be profitable to qualify for the S&P 500, while smaller companies would still need to meet that bar. This highlights the immense pressure index providers face to include generation-defining companies.
The exclusion of Tesla from the S&P 500 until December 2020 serves as a cautionary tale. Index funds missed out on the automaker’s near-eightfold rise that year, a period where it added half a trillion dollars in market value, causing S&P tracker funds to lag their peers. The proposed changes are a direct attempt to avoid repeating that scenario with companies like SpaceX, which could debut as the eighth-largest U.S. stock.
Nasdaq’s changes are already in effect. New rules provide for an accelerated entry after just 15 trading days for IPOs large enough to rank in the top 40 listed on the exchange. This is a dramatic reduction from the previous three-month waiting period.
Furthermore, Nasdaq has addressed a long-standing issue with how it weights companies with a small percentage of their shares available for public trading, known as a low "free float." Previously, a low-float company’s weight could be artificially inflated. Now, Nasdaq will weight these stocks at the lower of three times their free float or their full market value. This change is expected to triple the weight of Arm Holdings in the Nasdaq-100 after its next rebalance, forcing funds like QQQ to significantly increase their positions.
This new framework is tailor-made for a company like SpaceX, which is expected to have a small free float but an enormous market valuation, ensuring it can be quickly and appropriately integrated into the index.
This article is for informational purposes only and does not constitute investment advice.
