Passive funds prepare to offload billions ahead of SpaceX, OpenAI and Anthropic listings
Anticipated initial public offerings from major private tech firms are expected to trigger significant portfolio adjustments among passive investors, according to the Financial Times.
Passive investment funds are preparing to liquidate billions of dollars in existing shares to accommodate the anticipated entry of SpaceX, OpenAI, and Anthropic into the public markets. The move is expected to drive substantial trading activity on Wall Street as institutional portfolios are rebalanced to make room for the new listings, the Financial Times reports.
The three entities, which have previously operated as private companies, represent a significant shift in the technology and aerospace sectors. Their transition to public status is projected to create a trading environment that market observers describe as a potential frenzy, driven by the sheer scale of capital required to integrate these high-profile valuations into existing index funds and exchange-traded products.
To facilitate this influx of new equity, passive managers must sell holdings in other securities to maintain target allocations. While the Financial Times characterises the volume as billions in shares, precise figures for the liquidation have not been confirmed. The mechanism relies on the standard rebalancing protocols of index funds, which must adjust their compositions when new constituents are added to major benchmarks.
This market adjustment occurs against a backdrop of robust performance from other major technology firms. Amazon reported $213.4 billion in revenue for the fourth quarter of fiscal 2025, marking a 12 per cent increase year-on-year. The company also recorded $25 billion in operating income during the period, reinforcing its position in the current market cycle.
Investor appetite for large-cap technology stocks remains strong, as evidenced by Amazon’s share price, which rose 31.9 per cent in a single month following its earnings release. Institutional investors have continued to show heavy buying interest in the sector, suggesting that the liquidity provided by passive fund rebalancing will be absorbed by broader market demand for established tech leaders alongside the incoming private giants.
The specific timing of the initial public offerings for SpaceX, OpenAI, and Anthropic has not been confirmed in available reports. Consequently, the exact impact on trading volumes and market stability remains a projection rather than a guaranteed outcome. However, the structural necessity for passive funds to sell existing assets to accommodate these listings highlights the growing influence of private market valuations on public exchange dynamics.
As these entities prepare for their public debut, the financial community is closely monitoring how the rebalancing of passive portfolios will interact with active trading strategies. The interplay between the liquidation of existing holdings and the acquisition of new tech equity will likely define a significant portion of market activity in the coming months.
