Oura, the maker of the health and wellness tracking smart ring, has confidentially filed for an IPO with the SEC.

Oura is the latest household name to test public markets in what is shaping up to be the busiest year for tech IPOs since 2021.

Finnish smart-ring maker Oura has filed confidentially for a US IPO, less than a year after closing an $11bn Series E and crossing $1bn in sales.