历史新高！集体大涨

Core Viewpoint - The recent surge in Japan's stock market, particularly driven by SoftBank Group, is linked to renewed investor enthusiasm for AI and cloud computing, following Oracle's significant stock price increase [1][2][3]. Group 1: Market Performance - On September 11, the Nikkei 225 index rose over 1%, reaching a historical high, with SoftBank Group's stock price increasing nearly 10%, resulting in a market capitalization growth of over 2 trillion yen [1][2]. - SoftBank Group's total market value surpassed 26 trillion yen, while other tech stocks, such as Advantest and Fujikura, also saw notable gains [2]. - Oracle's stock surged nearly 36% on September 10, marking its largest single-day increase since 1992, which contributed to the positive sentiment in the tech sector [2][3]. Group 2: SoftBank and AI Investments - SoftBank's recent stock performance is not only influenced by Oracle but also by the soaring valuation of OpenAI, which raised $40 billion in a funding round led by SoftBank, bringing its valuation to $300 billion [3]. - OpenAI's valuation is projected to reach $500 billion following a proposed sale of shares by current and former employees, indicating a significant increase of nearly 70% in a few months [3]. Group 3: Economic Concerns - Despite the stock market's rise, there are concerns regarding the overall optimism for Japan's economic outlook, as evidenced by the underperformance of bank stocks, which fell nearly 1% [4]. - Analysts express uncertainty about the Bank of Japan's interest rate path, with expectations of a potential rate hike before January 2024, but caution remains due to global economic uncertainties [5].