SINA Corporation SINA reported third-quarter 2019 non-GAAP earnings of 94 cents per share, beating the Zacks Consensus Estimate by 30.6%. The figure also increased 1.1% from the year-ago quarter.Non-GAAP net revenues inched up 1% year on year to $558.8 million. At constant currency (cc), non-GAAP revenues increased 5% year over year. The Zacks Consensus Estimate for revenues was pegged at $563 million.Quarter DetailsAdvertising revenues (82.1% of revenues) decreased 4.7% year over year to $461.1 million due to a decline in portal advertising revenues.Non-advertising revenues (17.9% of total revenues) climbed 36.7% year over year (up 43% at cc) to $100.4 million. This upside was driven by robust performance in Weibo's live streaming business and higher revenues generated from the company’s fin-tech businesses.Sina Corporation Price, Consensus and EPS Surprise Sina Corporation price-consensus-eps-surprise-chart | Sina Corporation QuoteRevenues from the Weibo business grew 1.7% year over year to $467.8 million, driven by solid user growth with monthly active users (MAU) reaching 497 million in September and the average daily active users (DAUs) reaching 216 million.Weibo’s advertising & marketing revenues were up 0.8% year over year (up 5% at cc) to $412.5 million. Weibo’s VAS revenues jumped 8.6% to $55.3 million.Revenues from the portal business edged down 0.8% year over year to $100.5 million. Portal advertising revenues plunged 32.8% year over year to $50.1 million due to lower ad spending by SME customers. Other revenues surged 88.5% to $50.4 million.Operating DetailsSINA reported a third-quarter non-GAAP gross profit of $444.9 million, up 0.9% year over year. Non-GAAP gross margin of 79.3% contracted 50 basis points (bps) on a year-over-year basis.Non-GAAP advertising gross margin shrunk 100 bps to 83%. Non-GAAP non-advertising gross margin was 62%, down from year-ago quarter’s 70%.Sales and marketing expenses were $169.4 million, down 8.7% year over year. Moreover, general and administrative expenses flared up 58.1% to $44.9 million. However, product development expenses were $91.2 million, reflecting a decrease of 0.4%.Operating expenses (48.9% of revenues) on a non-GAAP basis came in at $274.9 million, down 0.5% year over year.Non-GAAP operating income was $170 million, up 1.1% year over year. Non-GAAP operating margin was 30%, flat year over year.Balance Sheet and Cash FlowAs of Sept 30, 2019, SINA's cash, cash equivalents and short-term investments were $2.9 billion compared the $2.15 billion reported in the previous quarter.While net cash provided by operating activities was $220.2 million in the third quarter, capital expenditures totaled $6 million.Zacks Rank & Other Key PicksCurrently, SINA carries a Zacks Rank #2 (Buy).Other top-ranked stocks in the broader computer & technology sector include Alteryx AYX, NetEase NTES and Fortinet FTNT. All three stocks sport a Zacks Rank #1 (Strong Buy), at present. You can see the complete list of today’s Zacks #1 Rank stocks here.Long-term earnings growth rate for Alteryx, NetEase and Fortinet is 39.9%, 31.9% and 14%, respectively.Free: Zacks’ Single Best Stock Set to DoubleToday you are invited to download our just-released Special Report that reveals 5 stocks with the most potential to gain +100% or more in 2020. From those 5, Zacks Director of Research, Sheraz Mian hand-picks one to have the most explosive upside of all.This pioneering tech ticker had soared to all-time highs and then subsided to a price that is irresistible. Now a pending acquisition could super-charge the company’s drive past competitors in the development of true Artificial Intelligence. The earlier you get in to this stock, the greater your potential gain.Download Free Report Now >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Fortinet, Inc. (FTNT): Free Stock Analysis Report NetEase, Inc. (NTES): Free Stock Analysis Report Sina Corporation (SINA): Free Stock Analysis Report Alteryx, Inc. (AYX): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research