US IPO Weekly Recap: SB Energy and Oura headline a pickup in filings
I'm LongbridgeAI, I can summarize articles.The US IPO market showed renewed activity in late August 2026, with major filings from AI infrastructure firms SB Energy and Accelevation, alongside consumer tech company Oura. TurboGen completed a direct listing, while Three Lions Acquisition priced its SPAC deal. Several companies refreshed filings for potential post-Labor Day launches, signaling an active September. The Renaissance IPO Index rose 17.6% year-to-date.
Two multibillion-dollar names joined the pipeline in the final week of the IPO market’s summer doldrums.
SoftBank-backed power and data center developer SB Energy (SBE) signals that the dominant theme of the 2026 IPO market, AI infrastructure, will continue into the fall. Smart ring maker Oura (OURA) marks a rare high-growth consumer tech IPO. Eight IPOs and three SPACs filed in total, while several more refreshed their filings, a pace that points to an active September. One company also completed its direct listing, and one SPAC priced.
TurboGen (TRBG), an Israeli developer of microturbine-based combined heat and power (CHP) energy systems, completed its direct listing on the Nasdaq on Thursday. The development-stage company finished the week down 32.0% from its $10.79 opening price.
The sole pricing this week came from Three Lions Acquisition (TLACU), which raised $100 million targeting sports, hospitality, and real estate.
| 2 IPOs During the Week of August 31st, 2026 | |||||
|---|---|---|---|---|---|
| Issuer Business | Deal Size | Market Cap at IPO | Price vs. Midpoint | First Day Return | Return at 09/04 |
| Three Lions Acquisition (TLACU) | $100M | $139M | 0% | -1% | +1% |
| Blank check company targeting sports, hospitality, and real estate. | |||||
| TurboGen (TRBG) | $0M | $281M | 144% | +10% | -32% |
| Israeli developer of microturbine-based CHP energy systems. | |||||
Two of the week's largest filings were AI infrastructure names. SB Energy (SBE), a developer of utility-scale power generation projects, filed for an IPO we estimate could raise $5 billion. Accelevation (ACCV), a manufacturer of power distribution and infrastructure products, filed for an estimated $800 million deal. Both firms are focused on building and powering the data centers driving the AI buildout, which has been the most reliable source of large deals this year.
More surprising was the return of consumer filings. Jersey Mike's and Reformation both broke issue after debuting in July, putting the prospects of a consumer IPO pickup in doubt. Oura (OURA) filed for an IPO we estimate could raise $2.5 billion, and cosmetics and beauty producer Wella (WELA) filed for an estimated $500 million offering.
Mongolia-based retail and commercial bank Bogd FT (BOGD) filed to raise $31 million. If it lists, it would be the first Mongolian company ever to trade on a major US exchange.
Several companies in the pipeline also refreshed their filings with updated financials, including AI chipmaker Syntiant (SYTN), apparel retailer Tailored Brands (MW), software provider Entrata (ENT), and convenience store chain Cumberland Farms (CMBY); the amended filings position these deals for potential post-Labor Day launches.
| 11 Filings During the Week of August 31st, 2026 | |||
|---|---|---|---|
| Issuer Business | Deal Size | Sector | Lead Underwriter |
| ADARx Pharmaceuticals (ADRX) | $100M | Health Care | JP Morgan |
| Phase 3 biotech developing siRNA therapies for various diseases. | |||
| Legion Capital Acq. (LCAD.U) | $200M | SPAC | BTIG |
| Blank check company targeting aerospace, defense technology, and intelligence. | |||
| New Iceland Arctic Acq. (NIAAU) | $125M | SPAC | Chardan |
| Blank check company targeting high-growth businesses in Iceland and the broader Arctic region. | |||
| Oura (OURA) | $2,500M | Technology | Goldman |
| Sells smart rings and subscriptions for personalized health insights. | |||
| Accelevation (ACCV) | $800M | Industrials | Morgan Stanley |
| Manufacturer of power distribution and infrastructure products for data centers. | |||
| Bogd FT (BOGD) | $31M | Financials | D. Boral Capital |
| Mongolia-based retail and commercial bank with 17 branches. | |||
| GLGHK (GLG) | $30M | Consumer Discretionary | Pacific Century |
| Provides golf services in Asia. | |||
| RainRock Acquisition (RRCKU) | $150M | SPAC | Cohen & Company |
| Blank check company targeting cryptocurrency and Web3 technology. | |||
| SB Energy (SBE) | $5,000M | Technology | JP Morgan |
| Developing power generation infrastructure focused on AI and data centers. | |||
| Kainan Holding Group (KHG) | $20M | Industrials | D. Boral Capital |
| Malaysia-based provider of foreign worker recruitment services. | |||
| Wella Company (WELA) | $500M | Consumer Staples | Goldman |
| Global producer of hair, nail, and beauty products under a portfolio of brands. | |||
The Renaissance IPO Indices are market cap weighted baskets of newly public companies. As of 9/3/2026, the Renaissance IPO Index was up 17.6% year-to-date, while the S&P 500 was up 14.0%. Renaissance Capital's IPO ETF (NYSE: IPO) tracks the index, and top ETF holdings include CoreWeave (CRWV) and Astera Labs (ALAB). The Renaissance International IPO Index was up 36.1% year-to-date, while the ACWX was up 17.4%. Renaissance Capital's International IPO ETF (NYSE: IPOS) tracks the index, and top ETF holdings include Galderma and CATL.