Hannover Re renews Cumulus Re parametric cloud outage cat bond at $35m, the largest yet

Hannover Re has sponsored a second successful renewal of its landmark parametric cloud outage catastrophe bond, this time securing $35 million in retrocessional cyber reinsurance protection covering cloud outage events with a Cumulus Re (Series 2026-1) issuance, Artemis can report.

We’ve learned from our sources that this new parametric cloud outage cyber cat bond issuance was completed last week and the coverage comes into effect soon for Hannover Re, with inception due on or around March 15th we understand.

Recall that, Hannover Re secured $13.75 million of retro protection from the first Cumulus Re (Series 2024-1) parametric cloud outage catastrophe bond in late March 2024.

The global reinsurance company followed that with a successful renewal one year ago, securing $20 million in retrocessional cyber reinsurance protection covering cloud outage events from a Cumulus Re (Series 2025-1) issuance.

Now, a third Cumulus Re private cloud outage cyber catastrophe bond has been sponsored by the reinsurer, with this becoming the largest yet as Hannover Re continues to build on the program to provide valuable retrocessional cyber risk protection.

Just like the first two Cumulus Re cloud outage cat bonds, this renewal for 2026 sees the cyber exposure risk being placed with investors on a private basis using Hannover Re’s Kaith Re Ltd. vehicle.

Hannover Re’s Bermuda-domiciled transformer vehicle Kaith Re Ltd. is the issuer for all of its privately placed catastrophe bond arrangements, for itself and for its clients.

We understand that, as in the first two Cumulus Re cloud outage cat bonds, the modelling of the cloud-related cyber exposure has again been undertaken by specialist provider of digital business interruption risk analytics and solutions Parametrix for this 2026 renewal issuance.

The 2026-1 issuance of Cumulus Re parametric cloud outage cyber cat bond notes is 75% larger than the soon to mature (April 14th) 2025 issuance.

For this second renewal, Kaith Re Ltd. has issued $35 million of Cumulus Re 2026-1 notes which have been privately placed with cat bond investors.

The first two Cumulus Re cloud outage cat bonds featured issuances of Reg 4(a)(2) zero coupon notes and we suspect this 2026 renewal is likely to be the same.

As with the previous two transactions, this new Cumulus Re 2026-1 cloud outage catastrophe bond features a parametric trigger, which is based on data related to outages of major US cloud provider regions and designed by specialist risk analytics provider Parametrix.

Parametrix will also again act as the ongoing calculation agent for the Cumulus Re renewal, monitoring for and reporting on the occurrence of any cloud outage events that could affect the notes.

The $35 million of Cumulus Re 2026-1 cat bond notes afford Hannover Re another single year of capital markets backed collateralized retrocessional cyber reinsurance protection, covering the risk of major cloud provider outages using a parametric trigger.

The maturity date remains the same as previous deals, being April 14th 2027 for this new issuance. We’re told the Cumulus Re 2026-1 cat bond notes were issued priced at 93% of par, so are again zero coupon notes.

We presume the coverage will closely mirror the previous Cumulus Re cat bonds. With those, Hannover Re received retrocessional protection that would trigger if the delivery of specific cloud services, in certain U.S. cloud regions, by one or more named cloud service providers, were interrupted in excess of a specified waiting period.

In addition our sources told us that the waiting period, so effectively the attachment metric for these notes, is the same as the previous issuances, so meaning a cloud outage event must be in effect for more than 24 hours.

Parametric cloud outage private cat bonds provide a form of per-occurrence retrocessional protection for Hannover Re and again, like the previous Cumulus Re’s the reinsurer has structured the coverage itself.

This Cumulus Re 2026-1 cyber catastrophe bond becomes the fourteenth cyber cat bond isted in our Deal Directory, but only the third to feature a parametric trigger, all of which are Cumulus Re deals.

You can read all about this Cumulus Re (Series 2026-1) private cloud outage cyber catastrophe bond in our Deal Directory.