Insurance-linked securities investment fund strategies, across catastrophe bonds and private ILS, saw returns accelerating in August 2026, as the average ILS fund performance reached 1.39% and cat bond funds had a particularly strong month, latest data from the ILS Advisers Fund Index shows.
August 2026 now becomes the best-performing month of the year so far for the ILS fund marketplace.
ILS fund returns have been rising with seasonality through the summer, driven by premiums earned through the Atlantic hurricane season and the increase accelerated last month, ILS Advisers data shows.
For August 2026, ILS Advisers reports the average return across its index constituent ILS funds was 1.39%, which now becomes the best month of the year and the strongest single month of ILS fund performance since October 2025 for this Index.
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