Reinsurers Offer a 10% Cut at Monte Carlo but Hold the Line on Frequency Cover

The concession on offer for January 1, 2027 is a property catastrophe rate cut of about 10%, steeper on higher layers, according to KBW's read of the Monte Carlo meetings (Artemis, September 11, 2026). The concession buyers asked for was structural: 40% of cedents now build frequency protection into their excess-of-loss programs, and aggregate buying has climbed roughly 50% in two years (Marsh Re, September 2026). Reinsurers are answering the first request and declining the second.

Berenberg's analysts, who met Hannover Re, Hiscox, Munich Re, SCOR, Swiss Re, UNIQA and Howden during the Rendez-Vous of September 5 to 9, came away with one consistent finding: reinsurers would rather give up price than loosen terms and conditions, and they showed "very limited appetite for loss-frequency covers" (Commercial Risk, September 2026). A year earlier the same meetings had produced the opposite promise.

Key Takeaways

About 10% is the property catastrophe rate decrease KBW takes from the Monte Carlo consensus for January 1, 2027, with higher layers falling further, and KBW notes that actual January pricing is usually worse than the September expectation (Artemis, September 2026).
40% of buyers now include frequency protection in their excess-of-loss programs, up from just over 25% two years ago, and the aggregate limit they trade has grown about 50% (Marsh Re via Insurance Business and Business Insurance, September 2026).
20% to 30% is Berenberg's estimate of the pricing benefit a reinsurer retains by holding attachment points where the 2023 renewal set them, two to three times the rate concession on the table (Artemis, August 2025).
Under 25% of 2025 natural catastrophe losses reached reinsurers, against 40% of the exposure they carried since 2021, which is the gap those attachment points created (Howden Re, September 2026).
Over half of primary insurers surveyed by Moody's expect aggregate covers to be more available at January 2027, after property cat rates fell more than 20% over 18 months (Insurance Business, September 2, 2026).

What the September Meetings Priced, and What They Turned Down

KBW's post-Rendez-Vous note puts the consensus for January 1 at property catastrophe decreases of roughly 10%, with higher layers falling further, and adds a warning from its own history: "actual 1/1 pricing is usually (certainly not always) worse than the preceding Monte Carlo expectations" (Artemis, September 11, 2026). Moody's survey, published before the meetings, had already recorded property cat rates down more than 20% over the prior 18 months and a growing share of respondents expecting further declines (Insurance Business, September 2, 2026). S&P's sector view, dated September 6, expects 2027 reductions to match 2026's even if losses stay within budget (Artemis, September 6, 2026).

Marsh Re, the renamed Guy Carpenter, published the buyer's list on September 2. Frequency protection now sits inside 40% of excess-of-loss programs, aggregate buying has grown about 50% in two years, and quota share capacity expanded 8% in the year and 30% over four (Insurance Business, September 2, 2026). Laurent Rousseau, the firm's CEO of Global Capital and Advisory for Europe and IMEA, compressed it to one line: "For insurers, the message is straightforward: this is a buyer's market" (Insurance Business, September 2026).

The demand traces to January 2023, when reinsurers raised attachment points and pushed wildfire, convective storm and flood losses back onto cedents' retentions, few of them large enough to reach a catastrophe program (Business Insurance, September 2026).

Berenberg's meetings produced the reinsurer answer. Softening will continue, prices remain adequate, and the preference across Hannover Re, Munich Re, SCOR and Swiss Re is to give up rate rather than terms, with any flexibility routed through "alternative and structured solutions" for long-standing clients rather than the traditional panel (Commercial Risk, September 2026). S&P expects the capacity glut to "exert additional pressure on terms and conditions, including coverage provisions and attachment points" (Artemis, September 6, 2026). The pressure is real; the September evidence is that it has moved price and left structure alone.

Why a Held Attachment Is Worth Two to Three Rate Cuts

Berenberg's arithmetic explains the preference. In August 2025 its analysts estimated that keeping attachment points at their post-2023 level "is equivalent to a 20-30% benefit in terms of pricing" (Artemis, August 4, 2025). The shape of a catastrophe layer's loss distribution explains why. A 10% rate-on-line cut on a layer attaching above the 2023 retention trims the margin on a layer that rarely pays. Lowering that attachment back toward its 2022 level, or adding an aggregate cover beneath it, moves the layer into the part of the curve where hail, wildfire and flood events land every year, and the expected loss can rise by more than the premium saved.

The 2025 loss year measured that difference. Reinsurers carried 40% of natural catastrophe exposure across the period since 2021 but paid under 25% of 2025's losses, and Howden Re's backtest of the 2022 book shows how quickly that gap closes once attachments move (Howden Re, September 2026). Europe's Big Four kept their catastrophe appetite through the June and July renewals only by raising attachments and exiting aggregate covers, with Hannover Re growing its book 12.3% while risk-adjusted prices fell 4.5% (AM Best, August 2026). A reinsurer that concedes 10% of rate keeps that 40-to-25 split. One that concedes the attachment gives it back.

Marsh Re's case is that reinsurers can afford to. Gallagher Re's composite posted a 19.9% half-year return on equity and an 85.8% combined ratio for the first half of 2026, the second-highest half-year result in a decade (Gallagher Re, September 1, 2026), and Marsh Re told partners that outperformance against cedants "should be enough to put frequency covers back in play" for January (Intelligent Insurer, September 2, 2026). The same Gallagher Re data put the cat-normalised combined ratio at 94.2%, deteriorating from the prior year (actuary.info, September 2026), which is the figure a reinsurer will cite when declining an aggregate placement. Both sides are reading the same half-year.

Where the Frequency Cover Gets Written Instead

The concession buyers asked for is being rerouted. Berenberg's note routes the flexibility through "alternative and structured solutions" for clients with long-term relationships (Commercial Risk, September 2026), and Swiss Re told Business Insurance it sees "continued interest" in frequency protection for secondary perils while planning to hold its existing aggregate book at its current size (Business Insurance, September 2026). Moody's found over half of primary insurers expecting aggregate covers to be more available in January (Insurance Business, September 2, 2026). More available from whom is the open question.

The capital-markets route is narrowing at the same time. Aggregate cover fell to 36.1% of outstanding catastrophe bond risk capital in 2026 as indemnity triggers took almost 78% of the year's limit (Artemis data, September 2026), so the pool most willing to write frequency in 2023 and 2024 is shrinking as demand for it peaks. Casualty inflows into ILS, which KBW calls "an incremental negative" for casualty reinsurers, are pulling investor attention toward seven-to-ten-year structures rather than annual aggregate layers (Artemis, September 11, 2026). A cedent that could not place an aggregate with Munich Re in July will find the alternative panel occupied elsewhere.

The prior edition of these meetings is the benchmark. In September 2025 Guy Carpenter's Rousseau told the market that "price decreases will accelerate and terms and conditions will broaden" (Global Reinsurance, September 2025), and KBW recorded "clearly more willingness to write aggregate reinsurance covers", at attachments "significantly more remote than in the pre-2023 era" (Artemis, September 2025). Twelve months on, the price half arrived and the terms half stayed in Monte Carlo. The January 2027 print will show a rate decrease near 10% that buyers negotiated. The attachment point, the item Berenberg prices at two to three times that, will still be where the 2023 renewal left it.

Reinsurers Offer a 10% Cut at Monte Carlo but Hold the Line on Frequency Cover

Key Takeaways

What the September Meetings Priced, and What They Turned Down

Why a Held Attachment Is Worth Two to Three Rate Cuts

Where the Frequency Cover Gets Written Instead

Further Reading

Sources