What happened

Shares of QuinStreet (QNST 1.02%) jumped on Thursday following the marketing technology company's fiscal second-quarter report. Both revenue and earnings came in above analyst expectations, and the company boosted its outlook for fiscal 2018. QuinStreet stock was up about 35% at 12:45 p.m. EST.

So what

QuinStreet reported second-quarter revenue of $87.5 million, up 33% year over year and $12.3 million above the average analyst estimate. "Momentum in our business continues to be propelled by the roll-out and execution of the product and media strategies developed over the past few years, and by clients shifting more spending to digital media and performance marketing," said QuinStreet CEO Doug Valenti.

A rising stock chart.

Image source: Getty Images.

Non-GAAP earnings per share came in at $0.07, $0.06 better than analysts were expecting. QuinStreet also swung to a profit on a GAAP basis, producing GAAP EPS of $0.04. That's up from a loss of $0.17 per share in the prior-year period.

QuinStreet also increased its adjusted earnings before interest, taxes, depreciation, and amortization. Adjusted EBITDA was $6.6 million during the second quarter, up from a loss in the prior-year period.

Now what

On top of beating analyst estimates, QuinStreet increased its guidance for the full fiscal year. The company now expects to grow revenue by about 20% and to produce an adjusted EBITDA margin of 8%. QuinStreet had previously guided for revenue growth of between 10% and 15%.

With a massive revenue beat and a big jump in profits, investors have plenty of reasons to push up the stock.