US IPO Rebound Does Little to Dent Private Markets’ Rapid Growth

Despite a recent rebound in US initial public offerings, the overall number of public companies continues a decades-long decline, standing at approximately 4,000 last year, half the 1996 level. This trend is driven by the unchecked growth of private markets, which now host nearly 800 US companies valued at over $1 billion, including mega-unicorns like SpaceX, Anthropic, and OpenAI, signaling a sustained shift of significant value creation away from public exchanges.

Analysis

Despite a cyclical recovery in US initial public offerings, a significant long-term structural trend continues to diminish the public markets. The number of US-listed public companies has fallen by approximately 50% since its peak in 1996, standing at around 4,000 last year, according to a Bloomberg Intelligence report. This decline is directly contrasted with the unchecked growth of private markets, which now host nearly 800 US-based companies valued at over $1 billion. Critically, this includes mega-unicorns such as SpaceX, Anthropic, and OpenAI, each valued at over $100 billion, indicating that substantial value creation from premier technology and innovation leaders is occurring outside the purview of public exchanges. The current IPO rebound, therefore, does little to reverse the fundamental, multi-decade shift of high-growth enterprises toward the private domain.

Key Decisions for Investors

• Investors seeking exposure to premier, high-growth technology companies should consider allocations to private equity or venture capital funds, as significant value is being created in firms like SpaceX and OpenAI before they reach public markets.
• The shrinking number of public companies suggests that public market indices may offer a different growth profile than in past decades, warranting a re-evaluation of whether current public equity strategies adequately capture exposure to cutting-edge innovation.
• Monitor the IPO pipeline of the nearly 800 unicorns, as their eventual listings could present significant investment opportunities, but be prepared for high initial valuations given their substantial private market appreciation.