TOKYO — SoftBank Group has taken another multibillion-dollar hit from its ambitious but costly bets on once high-flying companies like Uber and WeWork, putting growing pressure on the Japanese conglomerate to get its financial house in order.

The company and its founder and chief, Masayoshi Son, have dominated the world of technology investment through the $100 billion Vision Fund. More recently, the company has become a target for the hedge-fund giant Elliott Management, which has been urging changes at the Japanese firm, including governance overhauls and stock buybacks.

On Wednesday, SoftBank may have given Elliott another reason to complain. It said the Vision Fund and other investments cost its bottom line 225.1 billion yen, or about $2 billion, in the final three months of 2019.

Over all, SoftBank reported a profit of about $501 million for the quarter, well short of what investors had expected. Its profit was less than one-tenth of what it had posted one year earlier. Its operating profit fell 99 percent.