Sompo P&C desk

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Live intelligence on the market Sompo writes. Product lines, placement by broker, and whitespace sit beside the Sompo, brokers, M&A, private equity, and construction desks. Live news is industry-wide; live scan uses Grok.

Next · Rendez-Vous de Septembre — 68th edition · Sep 5–9, 2026 · 3d

Whitespace

Underserved and overproducing

New and rising white space versus classes drowning in capacity. Grounded in the 2026 tape — commercial auto and excess construction casualty still tight; cyber, non-CAT property, and public D&O still chasing. Industry news, not a Sompo appetite memo.

Underserved

7

Capacity tight, demand rising, or product barely exists.

Overproducing

5

Rate down, oversubscription common, capital stacked.

Analyst brief · Whitespace

cautious57

Underserved / overproducing · Whitespace. Orderly, selective on Whitespace. Auto and excess construction still tight. Cyber, non-CAT property, and public D&O still chasing. Sompo’s specialty and Aspen cyber / management-liability capabilities need a clear answer when Gallagher Re shops these risks in the fall. Chatter: @SompoIntl: Definitive agreement to acquire Service Insurance Companies — a monoline WC specialist in the SME….

Storylines

  • Sompo’s specialty and Aspen cyber / management-liability capabilities need a clear answer when Gallagher Re shops these risks in the fall.
  • New white space, not a rate story yet. Sompo’s construction, property, energy, and cyber desks will see the same submission. The question is who can authorize the whole stack.
  • This is the oversupply map. Non-CAT property, cyber, and public D&O are crowded. The money is in the classes that did not get this capital: auto, excess construction casualty,…
  • This is the SME / GA distribution play that sits next to Aspen’s specialty and capital-markets stack. Construction accounts and wrap-ups will feel it in 2027 renewals if the close…

Risks

  • Underinsurance is a claims event waiting. Sompo construction underwriters should be forcing mid-term value endorsements, not waiting for the next bound layer.
  • Whitespace is not ‘casualty.’ It is auto, low-attach construction excess, and nuclear-verdict venues. Everything else is starting to see the property-capital overflow.
  • If you need a one-line whitespace map: auto in, cyber out. Construction excess sits with auto. Public D&O sits with cyber.

Watch

  • Commercial auto / excess auto — Rising · capacity tight
  • Excess construction casualty — Rising · attachment matters
  • Cyber capacity — Crowded · rates still down
  • Non-CAT commercial property — Crowded · capacity stacking

Orderly but selective on Whitespace. Rate, capacity, and litigation are sharing the tape. · seed brief

White space

Underserved / rising

7

Rising · capacity tight

Commercial auto / excess auto

The most reliably underserved large casualty class in 2026. Rates still +8% to +15%. Excess auto is contracting, HNOA is difficult, and nuclear-verdict trucking venues are not attracting the capital that flooded cyber.

  • CRC: excess auto capacity continues to contract; layered placements are the norm.
  • Industry outlooks still print +8% to +15% on commercial auto for 2026.
  • Bodily injury severity and nuclear verdicts, not frequency, are the driver.

Rising · attachment matters

Excess construction casualty

Primary OCIP/CCIP is orderly. The white space is umbrella and excess, especially low-attach and residential-adjacent. +5% to +30% depending on account. This is where Sompo can still differentiate.

  • Builders risk on non-CAT ground-up work is actually softening (−5% to +10%).
  • Umbrella/excess construction still prints +5% to +30%.
  • Residential trades and low-attach wraps remain the excluded or surcharged set.

Rising · venue risk

Nuclear-verdict casualty

Social inflation has not been underwritten away. Habitational, trucking, premises, and products in aggressive venues still pay for jury risk. D&O softness does not migrate here.

  • Casualty 2026 is fragmented, not uniformly hard — capital is choosy by class and venue.
  • Habitational and trucking remain the poster classes.
  • Primary can be found; excess still prices the tail.

New · values exploding

Data-center property & BI

Allianz (Aug 2026): the global data-center insurance market is ~$11bn today and headed past $24bn by 2030. Fire drives severity. Power, water, and nat-cat BI are the new forms. Capacity exists; the gap is integrated construction-to-operate cover at hyperscale values.

  • Swiss Re / Allianz: market more than doubles by 2030.
  • Fire accounts for well over half of ~$800m of studied losses.
  • McKinsey: $5.2–$7.9tn of compute-power capex by 2030 — insured values will not lag quietly.

New · protection gap

Mid-market parametric

Parametric weather, flood, and delay-in-start is still a large-account product. Mid-market contractors and emerging-market infrastructure are the white space — indemnity timelines of 6–18 months are the competitor.

  • Parametric payouts settle in 15–30 days versus 6–18 months on complex indemnity.
  • Highest density of uninsured CAT economic loss is still Asia-Pacific infrastructure.
  • Builders-risk softening has not produced a parametric product for the mid-market.

Rising · terms tightening

Older property & environmental

Amwins: capacity is abundant on well-engineered risks and scarce on older locations, aging infrastructure, and outdated systems. Environmental excess is thinner because auto claims ate the tower. Surplus lines is filling the gap.

  • Carriers tightening deductibles and terms on older schedules.
  • Environmental excess capacity reduced, partly on large auto claims.
  • E&S filling where admitted has pulled back.

Rising · CAT-adjacent

Wildfire & secondary perils

Non-CAT property is soft. Wildfire, severe convective storm, and flood-adjacent schedules are not. 2025 California wildfires did not stop the non-CAT rate fall — they split the market.

  • Commercial property premiums −5.5% in Q1 2026 even after 2025 wildfires.
  • Loss ratio improved to 85% — the average hides the CAT-adjacent tail.
  • Admitted pullback on older, brush, and SCS-exposed schedules.

Crowded tape

Overproducing / crowded

5

Crowded · rates still down

Cyber capacity

The textbook oversupply. Insurers chasing, reinsurance participating, rates −3.5% in Q1 2026 and still buyer-friendly into the year — while U.S. claims are up ~40%. Frequency is the tell that this will not last; it has not turned yet.

  • IMA: cyber −3.5% in Q1 2026; threat activity intensifying.
  • CRC: market remains relatively soft through 2026 absent a systemic event.
  • Global cyber is still <1% of P&C premium — protection gap and oversupply can coexist.

Crowded · capacity stacking

Non-CAT commercial property

Three-quarters of carriers added property capacity. Q1 2026 premiums −5.5%. Oversubscription on layered placements is commonplace. This is not where a specialty sheet earns its keep — unless the risk is CAT-adjacent or old.

  • IMA Q2 2026: commercial property led the decline at −5.5%.
  • Amwins: record availability of capacity and new entrants; oversubscription is normal.
  • Annual commercial property loss ratio improved to 85% YE 2025.
Property1 on tape

Crowded · eighth down quarter

Public D&O excess

D&O fell 2.1% in Q1 2026, the eighth consecutive quarter of decreases. Excess is abundant; buyers are expanding limits. The oversupply is in public-company excess, not in scaling AI issuers.

  • IMA: D&O −2.1% in Q1 2026, eighth straight down quarter.
  • EPLI also down (~1.8%) — professional lines are competitive.
  • Capacity particularly abundant in excess layers.

Crowded · rates down

Workers’ compensation

WC is one of the lines posting decreases into 2026. That is why Sompo’s Service Insurance Companies deal is a distribution and SME play, not a hard-market land grab. Underwriting quality still separates the book.

  • IMA: most lines down in Q1 2026, WC among the steeper declines.
  • Monoline WC specialists are being bought for channel, not rate.
  • Medical and wage inflation are the residual watch items.
Casualty2 on tape

Crowded · rate negotiable

Non-CAT builders risk

Ground-up non-CAT builders risk is stable to softening. Gallagher has printed single-layer decreases of 5–7% in non-CAT zones. Inland marine is competitive even with some adverse loss history. CAT and high-hazard projects do not get this tape.

  • Non-CAT builders risk −5% to +10%.
  • More capacity entered the class even as tariff values rose 25–30%.
  • The oversupply is ground-up property, not the excess casualty sitting above it.

Rising

Underserved on the wire

8

Crowded

Overproducing on the wire