Move Over, Alphabet! Warren Buffett's Successor, Greg Abel, Has Nearly $47 Billion Devoted to This Top Investment Idea

Under new CEO Greg Abel, Berkshire Hathaway has allocated nearly $47 billion to six Japanese companies—about $10 billion more than its roughly $37 billion Alphabet position—making Japan its largest investment theme by aggregate exposure. Berkshire's holdings include Mitsubishi ($12.94 billion), Itochu ($10.36 billion), Mitsui ($10.21 billion), Marubeni, Sumitomo and Tokio Marine, with the latter initiated in March 2026. The investment case centers on relatively cheaper valuations versus expensive U.S. equities, lower executive compensation, and steady dividends and buybacks at Japan's trading houses and insurers.

Analysis

The actionable signal is not the headline ownership change but the potential reinforcement of a durable capital-allocation regime: Japanese trading houses combine low starting multiples, cross-sector cash-flow exposure, and increasingly shareholder-friendly payout policies. If Berkshire’s incremental buying is confirmed in regulatory disclosures, it can tighten the float in names with limited foreign ownership capacity and lower the equity-risk premium applied to the group; the larger second-order beneficiary is likely Japan’s financial complex, including insurers and banks, as governance reform and rising domestic yields improve capital efficiency.

The principal risk is that these holdings are far less defensive than their conglomerate labels imply. Mitsubishi, Mitsui, Itochu, Marubeni, and Sumitomo retain substantial sensitivity to commodity prices, China-linked industrial activity, and yen moves; a sharp global-growth downgrade or stronger yen would expose earnings cyclicality that headline P/E comparisons obscure. Over 1-3 months, confirmation of position sizes, buyback announcements, and Tokyo Stock Exchange governance actions are catalysts; over 6-18 months, Japan rate normalization is the key swing factor for Tokio Marine and other financials.

Consensus may be overstating the information value of Berkshire activity. The Japanese trading houses have already become a crowded foreign-value expression, and Berkshire’s public endorsement does not eliminate their correlated exposure to global nominal GDP. The more differentiated expression is to separate governance rerating from commodity beta: favor high-ROE, consumer/technology-heavy Itochu versus more resource-sensitive Mitsui or Mitsubishi, while maintaining explicit yen and commodity risk controls.

Key Decisions for Investors

• Do not chase OTC ADRs MTSUY, ITOCY, MITSY, MARUY, and SSUMY on the article alone; require confirmation through Berkshire filings and current ownership percentages. OTC liquidity and FX conversion can overwhelm any incremental-flow thesis.
• On confirmed accumulation, initiate a 3-6 month pair: long Itochu (8001 JP; ITOCY where necessary) / short Mitsui (8031 JP; MITSY), sized beta-neutral. Thesis: Itochu’s higher consumer and non-resource mix should preserve margins better if China or commodities soften; exit if the relative spread underperforms 10% or if commodity prices accelerate materially.
• Use Tokio Marine (8766 JP; TKOMY) as the cleaner 6-18 month Japan-financial expression only if Japanese 10-year yields remain above recent policy-normalization thresholds and management sustains buyback guidance. A rapid yield retracement or major catastrophe-loss event would invalidate the setup.
• For U.S. portfolios, retain GOOG as a separate AI/cloud earnings trade rather than treating it as interchangeable with Japan value exposure. Reduce if Cloud growth or consolidated operating-margin guidance misses; Berkshire-related ownership is not a durable valuation catalyst for Alphabet.