Core Viewpoint - SoftBank Group Corp. has achieved a significant turnaround by returning to profitability in the latest quarter, leading to a surge in its stock price to a historical high in the Japanese market, reflecting investor confidence in its AI-related investments, particularly in Nvidia and TSMC [1][2][5] Investment Performance - SoftBank's Vision Fund has seen a rebound in investment value, aided by the sale of its stake in T-Mobile US Inc. for $4.8 billion and a recent $3 billion stock sale, which supports its aggressive AI investment strategy [1][5] - The company's stock price increased by as much as 13%, marking the largest gain in four months, and its American Depositary Receipts (ADRs) rose over 5%, nearing the historical peak set in 2021 [2][5] AI Investment Strategy - SoftBank has significantly increased its holdings in Nvidia to approximately $3 billion, more than doubling its previous investment, and has also acquired shares in TSMC and Oracle, benefiting from the rising demand for AI infrastructure [5][8] - The company is focusing on AI infrastructure investments, with plans to invest up to $30 billion in OpenAI and a $6.5 billion acquisition of Ampere Computing, as part of its broader strategy to establish a $1 trillion AI manufacturing center in Arizona [9][10] Market Outlook - Analysts predict that the ongoing demand for AI computing power will continue to drive stock prices for companies like Nvidia and TSMC, with a potential global investment wave in AI infrastructure reaching $2 trillion [7][8] - SoftBank's recent financial results showed a net profit of 421.82 billion yen (approximately $2.9 billion), significantly exceeding analyst expectations, driven by the recovery in technology valuations and strong returns from its portfolio companies [6][8] Challenges and Future Plans - Despite the positive outlook, SoftBank's stock buyback plan has been curtailed, with only about 3.3 trillion yen of the planned 5 trillion yen executed, which may limit future upside potential [2][5] - The company faces scrutiny regarding its ability to manage large-scale financing needs amid rising interest rates in Japan, which could impact its stock valuation relative to its net asset value [9][10]