Japanese technology giant SoftBank said Tuesday it has sold its stake in Nvidia, raising $5.8 billion to pour into other investments. It also reported its profit nearly tripled in the first half of this fiscal year from a year earlier. Tokyo-based SoftBank Group Corp. said it sold the stake in Silicon Valley-based Nvidia in October, a move that reflects its shift in focus to OpenAI, owner of the artificial intelligence chatbot ChatGPT, the AP reports. The company's fortunes tend to fluctuate because it invests in a range of ventures, including through its tech-focused Vision Funds. Those recently have paid off.