Smart ring maker Oura files to go public

SpaceX may have stolen the show with its IPO prospectus, but Elon Musk’s aerospace-AI-data center company wasn’t the only notable business to file to go public this week. On Thursday, Finnish smart ring company Oura said that it had confidentially submitted a Form S-1 to the U.S. Securities and Exchange Commission in preparation for an IPO. Founded in 2015, Oura has emerged as one of the most popular wearable health trackers, setting itself apart from Fitbit, Garmin and Apple’s watch-like products with a sleek, unobtrusive ring.