Sonos opened its first day of trading at $15 a share though quickly gained 20% as trading began. As of publication, Sonos, trading under SONO, is around $18.50 a share. Sonos priced its initial shares at $15 a share, below the expected range of $17 to $19. At this price Sonos is valued at just … Continue reading Sonos sees modest gains on first day of trading