巴菲特，最新操作！

Group 1 - Berkshire Hathaway increased its stake in Mitsubishi Corporation from 9.74% to 10.23%, triggering disclosure requirements under the Financial Instruments and Exchange Act [1] - Following the announcement, Mitsubishi Corporation's stock price rose nearly 3%, contributing to an overall increase in the Japanese stock market [1] - Berkshire Hathaway's total investment in the five major Japanese trading companies has reached $23.5 billion, with an average annual return of 15.3% since the initial investment [3] Group 2 - The Nikkei 225 index has seen a year-to-date increase of over 7%, recently surpassing 42,800 points, approaching its historical high of 43,876 points [4] - Japan's economy expanded at a faster-than-expected pace, with a second-quarter GDP growth rate of 1.0%, leading to expectations of a potential interest rate hike by the Bank of Japan [5] - A survey indicated that nearly two-thirds of economists believe the Bank of Japan will raise its key interest rate by at least 25 basis points later this year [5] Group 3 - Despite pressures for rate hikes due to inflation exceeding 2% for over three years, the Bank of Japan has maintained a cautious approach, partly due to concerns over U.S. tariffs impacting Japan's economic growth [6] - A recent survey showed that 92% of economists expect no rate adjustment in the upcoming monetary policy meeting, but 63% anticipate a rate increase in the next quarter [6]