Berkshire Hathaway reportedly continues to increase its stake in Japan's five largest trading houses

Summary

Berkshire Hathaway, led by Warren Buffett, has increased its stake in Japan’s five major trading companies to between 8.5% and 10.23% as of 2025. Buffett emphasized a long-term commitment to these investments, potentially holding them for decades. This move is driven by Japan’s corporate governance reforms, attractive valuations, and dividend yields.Sina Finance+ 2Sina Finance

Impact Analysis

So basically, Buffett is doubling down on Japan’s trading companies, which is a fascinating move given the timing and context. The increase in stake to over 10% in companies like Mitsui and Mitsubishi signals a strong vote of confidence in Japan’s corporate governance reforms and the diversified nature of these firms, which can weather commodity price volatility.Sina Finance+ 2 The market has reacted positively, with stock prices rising, indicating that investors see this as a validation of the sector’s potential.Zhitong+ 2 The interesting part isn’t just the stake increase, but Buffett’s willingness to hold these positions for decades, suggesting he sees long-term value that others might be missing. I’d read this as a strategic play to capitalize on Japan’s evolving market dynamics, and it could prompt other investors to reassess their positions in Japanese equities. Watch for potential further increases in stake and how competitors might respond.