The mechanism: FEMA's Risk Rating 2.0, fully phased in since April 2023, repriced the National Flood Insurance Program property-by-property using replacement cost, distance to water, and flood frequency instead of the old flat-rate flood-zone maps. The predictable result: premiums rose sharply for the best-built, lowest-risk homes that had been overcharged under the old system, while high-risk repetitive-loss properties stayed underpriced because NFIP is statutorily required to insure anyone in a participating community regardless of construction. That gap — good risks paying more, bad risks still subsidized — is exactly the seam private carriers exploit. Private flood direct premiums grew roughly 43% from 2016 to 2024, and the growth accelerated once Risk Rating 2.0 rolled out, because private underwriters can now decline the slab-on-grade basement rebuild while the NFIP legally cannot.
The FHFA/FEMA Flood Reform Nobody Trades: Who Picks Up the Risk Private Insurers Won't Touch
As Risk Rating 2.0 pushes NFIP premiums toward true actuarial pricing, private carriers and reinsurers are quietly skimming the best-priced flood risk off the federal program — without ever touching the tail risk that scared them away from the market in the first place.
The NFIP can't say no to a slab-on-grade basement in a flood zone. Chubb can — and does, for a fee.
Who cashes in:
Chubb CB runs the cleanest version of this trade. Its Personal and Excess Flood product only writes homes valued above $1 million, offers up to $15 million in limits versus NFIP's $250,000 cap, and explicitly underwrites out the worst tail: ground-level construction, finished space below base flood elevation, missing flood vents, prior repetitive losses. Chubb collects premium on the safest, highest-value flood exposure in the country and simply never quotes the properties that would blow up a loss ratio.
Berkshire Hathaway (BRK.B), through National Indemnity and General Re, sits a layer above the retail carriers as a catastrophe-reinsurance backstop. It gets paid to absorb tail volatility on the private flood book that carriers like Chubb write, at reinsurance pricing that has hardened materially since 2023 — Berkshire's P&C reinsurance underwriting profit nearly doubled in Q1 2026 with no major cat losses to pay out against.
Marsh McLennan (MMC), through its Marsh and Guy Carpenter units, brokers the placement and reinsurance on both sides of this migration — a fee-based, risk-free toll booth on every policy that moves from NFIP to a private program.
Who is exposed: The NFIP itself — already roughly $20 billion in debt to Treasury — is left holding the highest-risk, lowest-premium properties as the private market cream-skims the profitable middle, worsening its structural deficit with every reauthorization. Progressive PGR, a major NFIP write-your-own servicer, earns fee income on the federal book but faces margin pressure as its best-priced flood customers defect to private carriers, leaving a costlier residual pool behind.
The play: This isn't a headline trade — it's a slow structural transfer of good risk from a taxpayer-backed program to private balance sheets, with reinsurers and brokers taking a cut at every step. Watch NFIP reauthorization deadlines (next: September 30, 2026) and any FHFA/FEMA rulemaking on private-flood acceptability for mortgage compliance — every expansion of "private flood counts" for lender purposes is a subsidy transfer to Chubb's underwriting book.
Source: original report ↗
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