Group 1 - Berkshire Hathaway (BRK.B) increased its stake in Mitsubishi Corp. to 10.23%, up from 9.74%, indicating ongoing expansion in Japan [1][8] - The total investment cost in Japanese firms is $13.8 billion, with a market value of $23.5 billion by the end of 2024, reflecting significant growth [2][8] - Berkshire expects to receive $812 million in annual dividends in 2025 while incurring only $135 million in interest expenses from yen-denominated bonds [4][8] Group 2 - Corporate governance reforms in Japan have improved transparency and capital efficiency, making Japanese companies more appealing to foreign investors [3] - Japanese companies are trading at lower valuations compared to U.S. companies, enhancing their attractiveness for investment [3] - Berkshire's strategy of issuing yen-denominated bonds has limited currency exposure and leveraged Japan's low-cost debt environment [4] Group 3 - MetLife has established a strong presence in Japan, particularly after acquiring Alico in 2010, which positioned it as a leader in the life insurance sector [5] - Aflac has invested in startups through Aflac Ventures Japan and converted its Japanese branch into a subsidiary, highlighting its commitment to the Japanese market [6] Group 4 - BRK.B shares have gained 11.3% year to date, outperforming the industry [7] - The price-to-book value ratio for BRK.B is 1.61, slightly above the industry average of 1.56 [9] - The Zacks Consensus Estimate for BRK.B's third-quarter 2025 EPS remains unchanged, while the fourth quarter estimate increased by 14.1% [10]