Shares of Line (NYSE: LN) plunged 11% on Jan. 25 after the Japanese messaging app company (owned by Korean internet company Naver) reported lackluster fourth quarter and full year earnings. Its revenue rose 15% annually to 37.5 billion yen ($330 million), but that missed the consensus estimate of 38.7 billion yen. Line’s operating profit more than doubled to 1.6 billion yen ($14 million), but that still missed expectations of 5.34 billion yen.