Green Dot Corporation GDOT delivered impressive fourth-quarter 2018results,with earnings and revenues beating the Zacks Consensus Estimate.Adjusted earnings per share (EPS) of 56 cents beat the consensus mark by 6 cents and surged 93.1% year over year. This marks the 10th consecutive quarter of double-digit growth. The bottom line was driven by strong adjusted EBITDA growth, interest income from the investment of cash deposits held at Green Dot Bank and lower year-over-year effective tax rate.Total operating revenues of $237.8 million outpaced the consensus mark by $1 million and rose 11.6% year over year on the back of 100% organic growth.Shares of Green Dot have gained 23.9% in the past year compared with the 15.1% rise of the industry.Let’s discuss.Key MetricsGross dollar volume grew 16.4% year over year to $9.8 billion. Purchase volume increased 10.9% from the prior-year quarter’s tally to $6.3 billion. The reported quarter ended with 5.3 million active accounts (up nearly 1% y/y) and 10.9 million cash transfers (up 9.6% y/y). The number of tax refunds processed were 0.07 million compared with 0.06 million in the year-ago quarter.Segmental RevenuesAccount Services operating revenues came in at $200.1 million, up 11.1% from the year-ago quarter. The segment benefited from growth in purchase volume and increased retention of customer accounts. Processing and Settlement Services revenues of $45 million, grew 10.9% from the year-ago quarter on the back of organic growth in each of the segment's various product lines.Green Dot Corporation Revenue (TTM) Green Dot Corporation Revenue (TTM) | Green Dot Corporation Quote Operating ResultsAdjusted EBITDA of $43.9 million increased 36.8% on a year-over-year basis. Adjusted EBITDA margin of 18.4% increased from 15.1% in the year-ago quarter.Balance Sheet & Cash FlowGreen Dot exited the quarter with cash, cash equivalents and restricted cash balance of $1.1 billion compared with $1 billion at the end of the prior quarter. The company has no long-term debt.The company generated $36.7 million of cash from operating activities and spent $17.6 million in capex.2019 GuidanceThe company expects revenues in the range of $1.114-$1.134 billion, lower than the Zacks Consensus Estimate of $1.140 billion.Adjusted earnings are anticipated between $3.59 and $3.67, the mid-point of which is lower than the Zacks Consensus Estimate of $3.66.Adjusted EBITDA is expected in the band of $315-$321 million.Zacks Rank & & Upcoming ReleasesGreen Dot currently carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.Investors interested in the broader Zacks Business Services sector are keenly awaiting fourth-quarter 2018 earnings reports of key players like Navigant Consulting NCI, FTI Consulting FCN and ICFI International ICFI. The companies are slated to announce results on Feb 26.Today's Best Stocks from ZacksWould you like to see the updated picks from our best market-beating strategies? From 2017 through 2018, while the S&P 500 gained +15.8%, five of our screens returned +38.0%, +61.3%, +61.6%, +68.1%, and +98.3%.This outperformance has not just been a recent phenomenon. From 2000 – 2018, while the S&P averaged +4.8% per year, our top strategies averaged up to +56.2% per year.See their latest picks free >>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 Navigant Consulting, Inc. (NCI): Free Stock Analysis Report FTI Consulting, Inc. (FCN): Free Stock Analysis Report Green Dot Corporation (GDOT): Free Stock Analysis Report ICF International, Inc. (ICFI): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research