OpenAI Targets Fall 2026 IPO at an Estimated $80 to $100B Secondary Valuation

OpenAI's anticipated IPOInitial Public Offering - a company's first public sale of stock. filing and SB Energy's parallel Nasdaq push represent a pivotal moment: the two most visible champions of the AI infrastructure thesis are going public at the same time, seeking to lock in valuations before macro conditions potentially shift. OpenAI's targeting of a fall 2026 debut suggests management believes market sentiment will remain favorable through the coming months, even as bond yields spike and Fed rate expectations reset. The exact valuation is not yet public, but prior secondary market transactions valued OpenAI in the $80-100B range, and public market comparables (Nvidia at 20x forward sales, Microsoft at 10x) suggest investors may be priced for 5-10x revenue multiples on OpenAI's estimated $5-6B run rate (per social mentions).

SB Energy's IPOInitial Public Offering - a company's first public sale of stock. filing is equally significant: SoftBank's Masayoshi Son is not just investing in AI startups (OpenAI, Anthropic) but is building the power infrastructure that will support them. SB Energy operates renewable energy assets and is positioning itself as a critical link between energy generation and data center developers. The dual IPO strategy, leveraging the AI infrastructure boom, mirrors SoftBank's historical playbook during the telecom and solar booms, where Son sought to own both the pipes and the content.

These filings validate that institutional capital is still flowing into the AI capex story, even as short-term macro headwinds (bond yields, Fed uncertainty, geopolitical risk) create near-term volatility. However, the timing is also revealing a degree of urgency: if management believes the window for premium public valuations is narrow, delaying might mean settling for lower multiples. This implies some underlying concern about capex appetite if macro conditions deteriorate further or if AI model productivity fails to deliver enterprise ROI.

The risk to these IPOs is straightforward: if Nvidia's post-earnings wobble expands into a broader AI capex selloff, or if bond yields continue higher, these offerings may be postponed or priced at significant discounts to prior secondary valuations. OpenAI and SB Energy are high-beta plays on continued capex acceleration, and they lack the diversified revenue bases and positive cash flows of mature tech platforms. Retail and institutional investors must believe in the AI thesis to allocate capital.