Berkshire Hathaway has increased its stake in Japanese trading houses, causing their shares to rise significantly. The five major companies affected – Mitsubishi Corp., Marubeni Corp., Mitsui & Co., Itochu Corp., and Sumitomo Corp. – all saw a minimum 4% increase in value as of the Tokyo stock market opening at 9:09 a.m. This surge is largely attributed to Berkshire’s average holding across these stocks, which has grown by just over one percentage point to approximately 9.3%.
Source: https://www.bloomberg.com/news/articles/2025-03-17/japanese-trading-house-shares-set-to-rise-on-buffett-s-stakes