Berkshire deepens its Tokyo bet as Japan's services PMI climbs to a five-month high

Berkshire Hathaway's appetite for Japan's five giant trading houses has entered a new phase. On 3 September 2026, CEO Greg Abel told the Nikkei that the conglomerate "would welcome" larger stakes in Mitsubishi, Mitsui, Itochu, Marubeni and Sumitomo, and that the group is prepared to hold those positions "forever," a sharper formulation than Warren Buffett used during his tenure.

The Nikkei interview landed in the same trading session that fresh Purchasing Managers' Index data put Japan's services sector at a five-month activity high, the clearest sign in months that the post-pandemic consumption recovery is widening beyond Tokyo and Osaka into the rest of the archipelago.

The convergence matters. Berkshire's Japan position, first disclosed in 2020 and built steadily over five years, has become a referendum on whether Japanese trading houses can keep compounding book value while paying out a higher share of earnings to shareholders. The new PMI print suggests the macro tailwind behind that compounding is still in place, even as the equity story is moving from a pure value play into something closer to a structural re-rating.

A faster clip at Mitsui and Mitsubishi

Berkshire first crossed the 5% disclosure threshold for all five houses in 2020, then raised stakes toward 9% on average by 2023. Since then the pace has been quieter, in part because Japanese regulators want holders above 10% identified as substantial shareholders and that triggers disclosure and governance scrutiny. Abel's Nikkei comments stop short of committing to any number, but the framing is the closest the company has come to pre-announcing the next leg.

The five trading houses are not interchangeable. Mitsubishi Corporation and Mitsui & Co. skew heavier toward energy, LNG and resource projects across Asia, Africa and the Americas; Itochu and Marubeni run more diversified consumer, food and metals portfolios; Sumitomo Corporation sits between them. Their common feature is cross-shareholding unwinds at home, which has steadily concentrated free float in foreign hands and reduced the float-driven liquidity discount that depressed these stocks for two decades.

The macro gear behind the trade

Japan's services PMI climbed to a five-month high in the August print released on 3 September, with new business growth accelerating alongside employment. The series has spent most of 2026 oscillating around the 50-mark expansion threshold; the latest reading is the strongest since February.

That matters more for trading houses than it does for the headline Nikkei index, because the five firms' earnings are sensitive to commodity volumes, shipping rates and Japanese consumer demand in roughly equal measure. A broadening services recovery feeds the food, retail and consumer-finance arms of Itochu and Marubeni directly, and supports the LNG and power offtake contracts that anchor Mitsubishi and Mitsui.

What the market is pricing

The Nikkei interview triggered a session-long rally in all five names, with the largest moves concentrated in the heavier resource books. That is consistent with the framing in the Nikkei piece, which emphasised Mitsubishi's energy pipeline exposure and Itochu's consumer holdings as Berkshire's preferred tilt within the basket.

Still, the bear case is straightforward. Berkshire's own cost of capital is close to zero, and the trading houses' incremental return on equity has compressed as their commodity books have matured. A move above 10% in any single name would also impose new governance disclosures that management has so far shown no appetite for.

What to watch before year-end

Two dates stand out. The next round of 5%-plus stake disclosures at Japan's Financial Services Agency is due in early October for positions held as of 30 September; if Berkshire has crossed another threshold in any of the five names, that filing will show it before any further public statement. The second is the Q3 dividend announcements, traditionally set in early November, where the market will look for another lift in payout ratios and buybacks.

The structural read is that Berkshire is no longer the only foreign holder underwriting the trading-house trade. Norwegian and Singaporean sovereign vehicles have been steady incremental buyers through 2026, and the services PMI print gives macro-cover for that flow to keep going. The question is no longer whether Japan trades differently in this cycle; it is whether the country's five legacy trading houses are the conduit for that re-pricing or just one beneficiary of it.

What the available reporting does not specify is the exact size of any new Berkshire position, the timing of any purchase window, or whether any of the five issuers have been formally consulted about a higher cap. Those answers, when they come, will arrive first at Japan's regulatory filing window, not on a conference stage.

Desk note: The wire frames Berkshire's move as a Buffett-legacy story carried by his successor Greg Abel. Monexus reads it as the next leg of a multi-year foreign rotation into Japanese equities that began with the 2023 TSE governance reforms and is now anchored by data points like the August services PMI rather than by any single activist fund.

Wire provenance

This editorial synthesis draws on the following public wire/social posts:

• https://www.investing.com/news/stock-market-news/berkshire-eyes-bigger-stakes-in-japans-top-trading-houses-ceo-tells-nikkei-4886955
• https://www.investing.com/news/stock-market-news/berkshire-bets-more-on-japans-top-trading-houses-do-their-fundamentals-hold-up-93CH-4886965
• https://www.investing.com/news/stock-market-news/why-are-japans-top-5-trading-houses-rallying-today-93CH-4886973
• https://www.investing.com/news/economic-indicators/japan-services-sector-posts-fivemonth-activity-high-93CH-4886992
• https://www.investing.com/news/economic-indicators/japan-services-growth-hits-fivemonth-high-pmi-shows-4886903