软银股价一度上涨5.9%，为1月5日以来最大涨幅

Group 1 - The core point of the article highlights that SoftBank's stock price experienced a significant increase of 5.9%, marking the largest rise since January 5 [2] Group 2 - The stock price surge indicates positive market sentiment towards SoftBank, potentially reflecting investor confidence in the company's future performance [2]