Largest IPOs in May: Cerebras Systems, Blackstone Digital, and Other Offerings Worth $9 Billion
According to the IFR calendar, from May 5 to 13, more than 10 IPOs and convertible bonds are coming to the US market. The largest offerings are expected from AI chip maker Cerebras Systems ($3.5 billion), data center REIT Blackstone ($1.75 billion), and geothermal company Fervo Energy ($1.33 billion).
May IPO Boom: Cerebras, Blackstone, and Fervo Bring Over $9 Billion to Market
Introduction
The first half of May 2026 promises to be one of the busiest periods for the US primary market in recent years. According to the International Financing Review (IFR) calendar, from May 5 to 13, more than ten IPOs and convertible bonds with a total volume exceeding $9 billion are hitting US exchanges. Three flagship offerings make up the bulk of this capital: AI chip maker Cerebras Systems is raising $3.5 billion, data center REIT Blackstone Digital Infrastructure Trust is raising $1.75 billion, and geothermal energy company Fervo Energy is raising $1.33 billion.
This wave of offerings reflects a radical shift in market conditions. Earlier this year, analysts characterized 2026 as a potential "mega-IPO year," predicting listings from giants like SpaceX, OpenAI, and Anthropic. The May offerings are the first major test of the market's ability to absorb multi-billion-dollar deals, paving the way for even larger debuts in the summer months.
Event Details and Timeline
The offering calendar is arranged with surgical precision—each of the three flagship issuers has its own window to avoid competing for investor attention on the same day.
Cerebras Systems kicked off its roadshow on May 4, setting a price range of $115–$125 per share. The company is offering 28 million new Class A shares, which at the top of the range would give it a market capitalization of around $26.6 billion. Notably, as recently as February 2026, during a private round, Cerebras was valued at $23 billion—so the IPO implies a premium of about 15% over a valuation just three months old. Final pricing is set for May 13, with trading starting on Nasdaq under the ticker CBRS.
Blackstone Digital Infrastructure Trust is on a different schedule. Its SEC filing was made on May 3, and the order book opens almost simultaneously with Cerebras. The deal structure involves offering 87.5 million shares at a fixed price of $20, raising $1.75 billion. As an incentive, investors will receive bonus shares equal to 1% of the purchased stake. An affiliate of Blackstone has already reserved $200 million in participation. Listing is planned on the NYSE under the ticker BXDC, with a syndicate of nine banks led by Goldman Sachs and Citigroup.
Fervo Energy will offer 55.6 million Class A shares at $21–$24 each, which at the top end would give it a market valuation of about $6.5 billion. Trading will start on Nasdaq under the symbol FRVO, with pricing expected on May 12. Orders totaling up to $350 million have already been confirmed by several institutional investors, including Wellington Management and Capital Research Global.
Alongside the top three, several other notable issuers are conducting their offerings: HawkEye 360 in aerospace intelligence ($416 million), Odyssey Therapeutics in biotech ($238 million), Brazil's Compass Gas e Energia (around $500–618 million), and convertible bonds from oilfield services company ProPetro for $550 million.
Impact and Significance
This wave of IPOs carries triple significance—technological, infrastructural, and energy—shaping the priority map for public markets for years to come.
Cerebras's offering goes far beyond a typical tech IPO. The company positions itself as the main challenger to Nvidia, the undisputed hegemon of the AI chip market with a market cap exceeding $4 trillion. Cerebras's flagship product, the Wafer-Scale Engine 3 (WSE-3), uses a fundamentally different architecture: an entire silicon wafer becomes a single giant chip, dramatically increasing data processing speed for AI models.
The key asset driving the company's value is its contract with OpenAI. In January 2026, the parties signed an agreement worth over $200 billion, providing for the delivery of 750 megawatts of computing power by 2028. OpenAI also provided a $1 billion operating credit and received warrants for 33.3 million shares—a substantial stake tying the fate of the leading AI model developer to Cerebras's success.
Blackstone Digital Infrastructure Trust is the bet of the world's largest alternative asset manager on the data center sector. In the prospectus, the company estimates the total addressable market for stabilized data centers at $1 trillion over the next five years. The REIT will focus on acquiring already-built and leased properties worth $250 million to $1.5 billion, with investment-grade tenants. This is a lower-risk model compared to development: the trust buys ready cash flow rather than financing construction.
Fervo Energy is bringing to the public market what its CEO, Tim Latimer, calls the potential to make geothermal energy "as widespread as solar." Enhanced Geothermal Systems (EGS) technology uses horizontal drilling and hydraulic fracturing—methods honed by the shale revolution. The company already has leased sites totaling over 595,000 acres in western states and has signed power purchase agreements with Southern California Edison and Shell.
Key Players' Reactions
The market shows strong appetite for the May offerings, but analyst opinions range from enthusiastic to cautiously skeptical.
According to informed sources, Cerebras's bookrunners have already received indicative orders for over $100 billion—nearly thirty times oversubscription relative to the base offering size. Jeff Thomas, head of Nasdaq listings, warned back in January of a "supercycle of IPOs" where mega-deals would absorb the lion's share of investor attention and capital.
However, not everyone is optimistic. Paul Wick of Seligman Investments, a thirty-year veteran of public markets, expressed skepticism about the fundamental economics of AI companies: "Facebook and Google before their IPOs were profit machines with huge growth and high barriers to entry. AI companies are losing enormous amounts of money and constantly need to raise new capital."
In Cerebras's case, this skepticism is tempered by financials: the company turned a net profit of $87.9 million on revenue of $510 million in 2025, compared to a loss of $484.8 million the year before. Still, the question of sustainable profitability remains open—the business is critically dependent on one client (OpenAI), creating concentration risk.
Blackstone takes a different approach, betting on the REIT format with predictable cash flow from investment-grade tenants, which should attract conservative investors seeking yield in an era of falling rates.
Forecast and Conclusions
The May IPO wave is highly likely to cement the trend of accelerating public offerings in 2026. The total deal volume over two weeks will exceed $9 billion, equivalent to about a fifth of the entire US IPO volume in 2025, when 202 companies raised $44 billion.
Lucas Mühlbauer of IPOX Research articulated the key factor driving the urgency of May offerings: "There's a race to complete deals before SpaceX goes public. There are fears that SpaceX's IPO—large and attention-grabbing—will absorb most investor interest and available capital." Elon Musk's SpaceX, valued at $800 billion, could hit the market as early as June, and any subsequent offering risks being overshadowed.
For investors, the May wave offers three contrasting bets. Cerebras is a high-risk bet on the emergence of a second major player in the AI chip market. Blackstone Digital Infrastructure is a bet on the physical infrastructure of the AI revolution with lower volatility thanks to the REIT structure. Fervo Energy is a long-term bet on the energy transition with technology proven at the pilot level but not yet fully tested at scale.
If all three flagship IPOs are met with positive momentum on the first day of trading, it will be a powerful signal for Anthropic, OpenAI, and other private giants, confirming the public market's readiness to absorb offerings of $3–5 billion without destructive pressure on valuations. If even one flagship faces a drop below the offering price, the window of opportunity could close as quickly as it opened.
— Editorial Team
