Space Exploration Technologies Corp. Class A Common StockExpected to join S&P 500 as a mega-IPO, potentially accounting for 3-4% of index.

The S&P 500 index could see its technology sector weighting approach 50% by the end of 2027 as mega-IPOs from SpaceX, Anthropic, and OpenAI are expected to join the benchmark after a 12-month waiting period. SpaceX alone may account for 3% to 4% of the index based on current market capitalization, with the others potentially reaching similar weightings. The Vanguard S&P 500 ETF already has 39% of assets in tech, and the Vanguard Total Stock Market ETF has 42%. Analysts suggest investors consider equal-weight strategies like the Invesco S&P 500 Equal Weight ETF, which cuts tech exposure to 19% and redistributes the difference across sectors such as financials, industrials, and healthcare, to mitigate concentration risk.
Space Exploration Technologies Corp. Class A Common StockExpected to join S&P 500 as a mega-IPO, potentially accounting for 3-4% of index.
NVIDIA CorporationExpected to join S&P 500 as a mega-IPO, potentially reaching similar weighting as SpaceX.
Expected to join S&P 500 as a mega-IPO, potentially reaching similar weighting as SpaceX.