CAD 442 m – CatIQ Discloses Third Industry Loss Estimate for June 2026 Flooding in Montreal and Surrounding Area
Toronto, September 22, 2026 – CatIQ, the independent Toronto-based organisation providing industry-wide catastrophe insurance data and subsidiary of PERILS, has today disclosed its third industry loss estimate for the June 2026 flooding event which impacted Montreal’s West Island and the surrounding area.
The third estimate, which gives a snapshot of the market 90 days post-event and covers property and vehicle claims, is CAD 442 million. This marks a slight increase versus the initial estimate of CAD 411 million, reflecting growth in both residential and commercial property lines. In line with the reporting schedule, the next update of market losses will be made on 22 December 2026, six months following the event.
Caroline Floyd, Director at CatIQ, commented: “In many ways, pluvial flash flooding events were the story of the summer in terms of Canadian catastrophes, with several large population centres recording their wettest summer on record. Between June and August, CatIQ recorded six catastrophes dominated by pluvial flooding and sewer backup in Ontario and Quebec alone. These events resulted in more than 30,000 personal property claims. By comparison, between June and August 2025, we saw only one such event – albeit one that also directly impacted the Montreal metro area. 2024, thankfully, still stands as an outlier compared to both years, with major flash flooding in southern Ontario and the remnants of Hurricane Debby in southern Quebec generating nearly 100,000 personal property claims.”
About CatIQ and PERILS
Toronto-based Catastrophe Indices and Quantification Inc. (CatIQ), a subsidiary of Zurich-based PERILS AG, is Canada’s loss and exposure indices provider, delivering detailed analytical and meteorological information on Canadian natural and human-made catastrophes. Through its online subscription-based platform, CatIQ caters to the needs of the insurance / reinsurance / ILS industries, public sector, and other stakeholders, with comprehensive insured loss and exposure indices and related information. PERILS is an independent Zurich-based organisation providing industry-wide natural catastrophe exposure and event loss data. The PERILS Industry Exposure & Loss Database is available to all interested parties via annual subscription. The use of CatIQ and PERILS exposure and loss data other than in conjunction with a valid License and according to its terms, by a Licensee or an Authorized User as defined in the License, is illegal and expressly forbidden.
More information can be found on www.catiq.com or www.perils.org
PR Contact
Nigel Allen | +44 7988 478824 | nigel.allen@allenandclapham.com