The Japanese company resumed buying on Sept 15, the day after unveiling that mega-deal, then bought on every single business day till the final five days of the September quarter, when it’s prohibited from doing so. Despite the flurry of purchases, its shares are still down 2% over the month, after news emerged that the company was trading tech options, a strategy some investors deemed risky.
SoftBank Group Corp. resumed buying back shares in September, shelling out 40.1 billion yen ($0.52 billion) after suspending in August a multi-billion-dollar program that’s proven instrumental in buoying the stock.
Masayoshi Son’s conglomerate bought back 6.17 million shares last month, it said in a filing Wednesday, part of a now half-completed 2.5 trillion yen buyback program. The firm halted that in early August, about a month before announcing a deal to sell U.K. chip designer Arm Ltd. to Nvidia Corp. for $40 billion.

