A Midvale, Utah-based homeowners insurer is aiming to hit the New York Stock Exchange with a valuation of up to $3.24 billion, but the company won't collect a single dollar from the offering. Bamboo Insurance Services filed U.S. initial public offering documents seeking to sell shares priced between $18 and $20 apiece, with selling shareholders looking to raise up to $700 million by offering 35 million shares. Every one of those shares is being sold by private equity backer CVC Capital Partners and insurance-company shareholder White Mountains Insurance Group, not by Bamboo itself.
As reported by KSL.com, Bamboo intends to list under the ticker symbol BMB, with underwriters including J.P. Morgan, Deutsche Bank Securities, Morgan Stanley, Evercore ISI, and Wells Fargo Securities. According to Stock Titan, all 35 million Class A shares in the offering — plus up to 5.25 million additional shares under an underwriter option — are secondary shares sold entirely by backing shareholders CVC Capital Partners and White Mountains Insurance Group. The listing uses an Up-C corporate structure and functions as an exit mechanism for the backing shareholders rather than a fundraising vehicle for Bamboo's own operations.
Bamboo was founded in 2018 and is led by John Chu, an insurance industry veteran, per KSL.com. The company operates as a managing general underwriter, meaning it underwrites and distributes homeowners policies on behalf of insurance carriers that ultimately bear the claims risk — a capital-light model.
Explosive Growth, Shrinking Margins
That capital-light approach fueled dramatic growth. Bamboo's written managing general agent premium climbed from $66.6 million in 2022 to $696.1 million in 2025, a roughly 945% surge over three years, according to Coverager. Annual growth has since moderated, slowing from 199% in 2023 to 58% in 2025, and the company now manages nearly $900 million in premium.
Revenue for the first half of 2026 reached $173 million, a 40% jump from $124 million in the same period a year earlier, per SEC filings reported by Intelligent Insurer. But net income fell over the same stretch, dropping from $23.7 million to $13.8 million as margins compressed. The trend illustrates a company still expanding fast but earning less on each dollar of business it writes.
California Dependence Despite Texas Push
Bamboo has moved into the Texas homeowners market, but California still generated 98% of its revenue heading into the 2026 public filing, according to Seeking Alpha. Bamboo captured about 4% of California's homeowners insurance market as of 2025, per KSL.com, in a state where recurring wildfires prompted several insurers to scale back operations and fueled broader market dislocations.
That dependence comes amid broader changes in California's insurance market. The state's property market has faced severe dislocations, even as investors weigh the company's geographic concentration against its growth ambitions.
A Private Equity Exit Years in the Making
The IPO caps a rapid ownership turnover. White Mountains Insurance Group originally acquired a majority stake in Bamboo in October 2023 for $285 million, then sold its controlling interest to CVC Capital Partners in December 2025 in a deal that valued Bamboo at $1.75 billion, according to Coverager. White Mountains retained a 15% minority stake valued at $250 million while pocketing approximately $840 million in net cash proceeds from the sale.
That transaction proved lucrative on paper. White Mountains booked an $816 million net gain from the sale, per The Royal Gazette. CVC is a European private equity firm; White Mountains is an insurance company, and both stand to benefit directly from the IPO's proceeds since the offering consists entirely of secondary shares.
Building Capacity Ahead of the Listing
Bamboo relies on outside carriers for homeowners capacity. As an MGU, Bamboo relies on outside carriers to bear the underlying risk on policies it writes, a structural reliance that will likely draw scrutiny from public market investors alongside the company's compressed margins.
Bamboo's debut arrives amid a broader, if uneven, market for U.S. IPOs. Rising oil prices and inflation have weighed on deal activity generally, and the fall U.S. IPO season has started more slowly than a year ago, per Reuters reporting via KSL.com. Still, the insurance-sector pipeline remains active: Melbourne, Florida-based Orion180 Insurance launched its own roadshow last week seeking up to $340 million, suggesting investor appetite for tech-driven insurers persists even as pricing softens industrywide.
Bamboo originally submitted its Form S-1 registration statement on August 28, 2026, before launching its official roadshow, according to PR Newswire. The U.S. homeowners insurance market provides a broad backdrop for Bamboo's growth ambitions if it can prove its underwriting model beyond its home state.
