Finnish smart ring maker Oura aims to raise up to $2.2 billion in US IPO

Finnish smart ring maker Oura is targeting up to $2.2 billion in its US initial public offering. The company and some existing shareholders plan to sell 50 million shares priced between $40 and $44 each.

Eli Lilly and Dragoneer have signalled interest in purchasing shares in the offering. Oura manufactures smart rings that monitor key health metrics including heart rate and sleep patterns.