Softbank founder and chief executive Masayoshi Son compared his investment approach to valuing, instead of killing, the goose that lays golden eggs. The letters read: "Softbank = A goose." (AP Photo/Eugene Hoshiko)

In an earnings report released on Monday, SoftBank notched more than $11 billion in profit for the three months that ended in December, driven by surging values for the company’s portfolio of holdings in companies like Uber and the food delivery app DoorDash, which have experienced whiplash changes in their share prices over the last year.

After a precipitous drop this summer, SoftBank’s share price has surged. The stock was trading at 9,485 yen, or about $90, per share in Tokyo by market close Monday, almost matching its highs in early 2000, just before the collapse of the first internet stock bubble.