Japanese telecommunications company SoftBank  (SFTBY) dialed up a 4% increase in operating profit in the first quarter.

The company posted operating profit of 269 billion Japanese yen ($2.5 billion) in the three months ended in June, roughly in line with analysts' estimates, according to a report from Reuters.

SoftBank used targeted marketing of heavy data-users to help add 372,000 more smartphone subscribers in the period than in the three months prior.

The company also raised its ownership stake in Yahoo Japan during the three months and said it would start a stock buyback program.

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Constable owns none of the securities listed in this story.