Updated on Monday, 9/14/26
Four sizable IPOs are currently scheduled for the week ahead, featuring nuclear power, biotech, insurance, and banking.
Nuclear plant equipment and services provider Holtec Nuclear (HNUC) plans to raise $825 million at a $9.4 billion market cap. Founder-owned and led, Holtec is a leader in decommissioning services and spent fuel storage and transportation solutions, whose focus now also includes the development of small modular reactors (SMRs), the restart of decommissioned power plants, and solar and energy storage technologies. Holtec’s Palisades project in Michigan notably represents the first-ever attempt in the US to restart a previously shuttered nuclear plant, supported in part by a US DOE loan guarantee facility of up to $1.5 billion.
Antibody biotech Electra Therapeutics (ETRA) plans to raise $325 million at a $1.0 billion market cap. The company is developing a class of precision medicines directed at signal regulatory proteins (SIRP) expressed on specific immune cell populations. Lead candidate ipsoprubart is a pan-SIRP monoclonal antibody designed to selectively deplete pathological myeloid cells and T cells, currently in the registrational Phase 2/3 SURPASS trial for secondary hemophagocytic lymphohistiocytosis (sHLH).
Focused on E&S home insurance in the US Southeast, Orion180 Insurance Group (OIG) aims to raise $320 million at a $1.6 billion market cap. Founder-led Orion180 states that it is the second largest E&S lines homeowners’ insurance provider in the US by direct written premiums with a presence in 14 states, approximately $601 million in managed premiums written for the twelve months ended June 30, 2026, and over 670,000 policies sold since inception.
Hawaii community bank American Savings Bank (ASBH) plans to sell $120 million of stock in an all-secondary offering at a $1.0 billion market cap. With $9.0 billion in assets and a $6.2 billion loan portfolio, the bank provides a full suite of financial products and services to personal, small business, and commercial customers across Hawaii though a statewide network of 35 branches and over 120 ATMs, complemented by a digital banking platform.
| U.S. IPO Calendar | |||
|---|---|---|---|
| Issuer Business | Deal Size Market Cap | Price Range Shares Filed | Top Bookrunners |
| American Savings Bank (ASBH) Honolulu, HI | $120M $1,044M | $15 - $17 7,496,436 | Piper Sandler KBW |
| Hawaii community bank with 35 branches across the state. | |||
| Electra Therapeutics (ETRA) South San Francisco, CA | $325M $976M | $14 - $16 21,666,667 | Jefferies TD Cowen |
| Phase 2/3 biotech developing SIRP-targeted antibodies for immune diseases and cancer. | |||
| Holtec Nuclear (HNUC) Camden, NJ | $825M $9,350M | $15 - $18 50,000,000 | JP Morgan Guggenheim |
| Provider of nuclear plant equipment and services that is developing a small modular reactor. | |||
| Orion180 Insurance (OIG) Melbourne, FL | $320M $1,618M | $15 - $17 20,000,000 | RBC UBS |
| Provides E&S home insurance concentrated in the US Southeast. | |||
Sign up for a free trial of our premium platform, IPO Pro. To get our IPO calendar in your inbox, register here. Defense tech roll-up Lyntris (LYNX; -27.2% from offer) is expected to see Street research initiations in the week ahead. We also count four lock-up releases, including a partial release from AI-optimized chipmaker Cerebras (CBRS; 3.8%). For access to Street research and lock-up expiration dates, sign up for a free trial of IPO Pro.
IPO Market Snapshot
The Renaissance IPO Indices are market cap weighted baskets of newly public companies. As of 9/10/2026, the Renaissance IPO Index was up 13.7% year-to-date, while the S&P 500 was up 11.8%. 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 38.6% year-to-date, while the ACWX was up 17.0%. Renaissance Capital’s International IPO ETF (NYSE: IPOS) tracks the index, and top ETF holdings include Galderma and CATL.
