Samsung Electronics has reported a record profit for six straight quarters but still disappointed investors who had higher expectations for the world's largest smartphone maker.

　　Samsung said its April-June net profit jumped 50% over a year earlier to 7.77 trillion won (£4.5 billion).

　　The bottom line was lower than the market forecast of 7.96 trillion won (£4.6 billion), according to a survey of analysts by FactSet, a financial data provider.

　　Operating profit was also at a record high of 9.53 trillion (£5.5 billion) won, up 48%. Sales rose 21% to 57.46 trillion won (£33.4 billion).

　　Samsung's latest quarterly report indicates that its explosive profit growth driven by Galaxy smartphone sales might be slowing down.

　　Samsung says its mobile business posted a lower profit than the previous quarter on marketing costs.