Futu’s stock price plummeted after the fourth quarter revenue was worse than expected

FAST NEW: Futu plummets on revenue miss

The Latest:  Online brokerage Futu Holdings Ltd. (FUTU.US) on Thursday reported its fourth-quarter net profit fell 8.4% year-on-year to HK$878 million ($112 million), though its full-year profit rose 46.2% to HK$4.28 billion. Looking Up:  The company’s…