Here’s Why Square Stock Jumped This Afternoon

Twitter Co-Founder Jack Dorsey
Square, a credit card reader made for smartphones, is plugged into an Apple Inc. iPhone for a photograph in New York, U.S., on Monday, Oct. 25, 2010. Square Inc.'s mobile-payment technology allows smartphone users to make credit card payments and the availability of funding for new ventures.
Photograph by Jin Lee—Bloomberg via Getty Images

Square, the mobile payments company co-founded and run by Twitter Chief Executive Jack Dorsey, reported a 20.7% jump in quarterly revenue as it processed more payments.

Net loss attributable to common stockholders narrowed to $15.17 million, or four cents per share, in the fourth quarter ended Dec. 31, from $80.5 million, or 34 cents per share, a year earlier.

Square’s net revenue rose to $451.9 million from $374.4 million.

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The company facilitates payments between businesses and customers by using a credit card reader that turns any mobile phone into a payment terminal.

The company’s shares (SQ) were up 5% in after-market trading on Wednesday.