Berkshire's 2026 Winners: Japanese Trading Houses and Healthcare Lead Gains

Despite transitioning from the CEO role at Berkshire Hathaway, Warren Buffett remains an active force in the firm's investment strategy, with several key holdings delivering significant returns in the first half of 2026. The current rally is being driven by a mix of diversified Japanese trading houses and essential U.S. healthcare services, reflecting a preference for predictable cash flows and strong business moats. Mitsubishi (MSBHF) has emerged as the top performer, with shares climbing approximately 45% year-to-date. The gain is attributed to surging demand for copper and liquefied natural gas (LNG), alongside the acquisition of Aethon to enter the U.S. shale gas market. Similarly, Marubeni (MARUF) has seen substantial growth, supported by aggressive share repurchases and a diversified portfolio spanning aerospace, agriculture, and energy. In the U.S., dialysis provider DaVita (DVA) has surged 30% YTD. The company's growth was bolstered by strong fourth-quarter results and optimistic 2026 guidance. DaVita also expanded its footprint in home health and hospice care through a strategic investment in Elara Caring alongside Ares Management. These gains underscore the effectiveness of Berkshire's strategy of investing in essential businesses that utilize buybacks to enhance shareholder value. While these assets lack the flash of high-growth tech, their resilience and recurring revenue streams have provided a stable hedge in the 2026 market environment.