Bill.com Holdings Inc.'s. stock /zigman2/quotes/215406166/composite BILL +4.13% initially soared 17% in extended trading Thursday after the maker of cloud-based software reported fiscal fourth-quarter results that topped Wall Street analysts' forecasts and offered strong revenue guidance for the current quarter. Bill.com reported a loss of $84.9 million, or 81 cents a share, compared with a loss of $41.9 million, or 48 cents a share, in the year-ago quarter. Adjusted earnings were a loss of 3 cents a share. Revenue increased 156% to $200.2 million from $78.3 million a year ago. Analysts surveyed by FactSet had expected on average a loss of 14 cents a share on revenue of $183.2 million. Bill.com said it expects between $208 million and $211 million in first-quarter revenue, far above the $187.3 million projected by analysts polled by FactSet. Shares of Bill.com have cratered 40% this year, while the broader S&P 500 index /zigman2/quotes/210599714/realtime SPX -0.27% has declined 10%.