Oura files for a US IPO, reporting a $924.3M net loss on $1.21B in revenue for the nine months ended June 30, vs. a $182.8M net loss on $697.6M a year earlier (Subrat Patnaik/Bloomberg)

Subrat Patnaik / Bloomberg: Oura files for a US IPO, reporting a $924.3M net loss on $1.21B in revenue for the nine months ended June 30, vs. a $182.8M net loss on $697.6M a year earlier — Health and fitness ring-maker Oura Inc. filed for an initial public offering, showing soaring revenue as well as increasing losses.