Spotify Technology S.A. shares plunged more than 6% in the extended session Wednesday after the company missed earnings expectations in its first report as a public company. Shares in the music streaming service closed up 3.1% to $168.99 during regular trading. The company reported first-quarter net losses of €169 million, or €1.01 a share, compared with net losses of €173 million, or €1.15 a share, in the year-ago period. Revenue rose to €1.14 billion from €902 million in the year-ago period. Analysts surveyed by FactSet had estimated losses of €0.32 a share on revenue of €1.16 billion; analysts had expected earnings of €0.28 a share using International Financial Reporting Standards. For the second quarter, analysts model earnings of €0.38 a share on revenue of €1.3 billion. The company said Tuesday that it expects revenue of €1.1 billion to €1.3 billion for the second quarter. Spotify stock has gained 14% since it began trading in April, with the S&P 500 index rising 1.5%.