Sony Group reported a 7% year-over-year increase in second-quarter operating profit, reaching 311 billion yen ($2 billion) for the July-September period.The company announced a significant share buyback of up to 100 billion yen ($648 million) and raised its full-year operating profit forecast to 1.05 trillion yen ($6.8 billion).Revenues for the quarter rose 5% to 3.108 trillion yen ($20.1 billion), bolstered by strong performance across its streaming services and gaming divisions.