Bermuda's machinery is financing Florida's recovery

Last summer's gubernatorial visit to Bermuda was the easy part; the hard part was convincing reinsurers that Florida's tort reform would stick, then watching them price property risk on that assumption. A year later, the evidence is in the renewal documents, the new policies, and the capital structure of Mangrove Property Insurance, a carrier founded last year that has already assembled a catastrophe bond and a sidecar out of Bermuda.

Mangrove is the creation of Stephen Weinstein, a two-decade Bermuda reinsurance veteran who set out to write the Florida homeowners business private capital had abandoned. He told The Royal Gazette that Bermuda is the market that matters: "The most important market in a thriving, ready, willing, and able global market for Florida, is Bermuda." The same account credits Governor Ron DeSantis's visit as pivotal, coming amid "the return of orderly renewals" that now shows a steadily improving insurance market.

What Mangrove has built since then is a case study in how Florida's recovery is being financed: this month it formed Grove Re, a Bermudian-domiciled Class 3A sidecar to support long-term risk management, and earlier established Buttonwood Re, a Bermudian special purpose reinsurer created to issue catastrophe bonds. The inaugural cat bond was listed on the Bermuda Stock Exchange with a bell-ringing ceremony at Exchange House on Pitts Bay Road. Our own reporting last month noted that Mangrove's 2026 hurricane program had reached a record size, layering aggregate cover for third and fourth events, with the $111 million debut bond part of that build. The exchange set a record with $70.5 billion in ILS listings, a 95.4% share of the cat-bond market.

Weinstein compresses the strategy into a single line: "One peril, one state, but it's the world's biggest peril in the most important market in the world." Because the company writes only admitted homeowners coverage in Florida, it is a pure play on the weather and the legal climate, and the bet is that reinsurance capital is returning because tort reform has changed the expected loss and Bermuda vehicles can deliver that capital at a cost private insurers can absorb.

The Royal Gazette's account puts Mangrove among 17 companies that have started issuing policies under the reformed regime, a number that suggests a broader return, but the market's real test is not how many carriers are writing paper; it is how those carriers will be capitalized when the next storm hits. Mangrove's program is explicitly built to cover a third and fourth hurricane event in a single season. The soft market is real but selective, as AM Best's 2027 outlook makes clear, and the danger is capital returning at the wrong price.

The state, according to the Gazette, was incentivised in its role as insurer of last resort to make it more attractive for private capital to return—public policy moving in the right direction—but the capital answering the call is being routed through offshore vehicles, which means the economics of Florida insurance will partly be decided in Hamilton, not Tallahassee. Weinstein makes the point himself: support comes from London, Europe, Asia, and the United States, and that is "the right way to manage the world's peak risk," which he identifies as Florida hurricane.

The quieter lesson is how completely ILS machinery has become the default tool for a new insurer: a company barely a year old already runs a cat bond, a special-purpose reinsurer, and a sidecar, all domiciled in Bermuda, whereas a decade ago a carrier of this kind would have leaned on traditional retrocession. The flexibility of the Bermuda structure—the ability to list on the exchange and tap investors on short notice—is now part of the underwriting itself. ILS has spread well beyond natural catastrophe in recent years, but natural catastrophe remains the laboratory where the tools are perfected.

The renewal cycle in Florida is orderly, which is an improvement, but orderliness is not the same as resilience. The bell-ringing was for $111 million in cover, and the sidecar is in place. The real test will come when a storm does what storms do: the structure suggests the capital will be there, the question is what it will cost, and no cat bond will answer that until the next renewal does.