(Bloomberg) -- Japanese trading houses, including Mitsubishi Corp. and Marubeni Corp., rallied on Tuesday after Berkshire Hathaway Inc.’s plans to increase holdings were seen a stamp of approval for the sector.

Most Read from Bloomberg

Trump Targets $128 Billion California High-Speed Rail Project Trump Asserts Power Over NYC, Proclaims ‘Long Live the King’ NYC’s Congestion Pricing Pulls In $48.6 Million in First Month NYC to Shut Migrant Center in Former Hotel as Crisis Eases As Visitors Discover Ghent, the City Is Trying to Prevent a Tourism Takeover

Mitsubishi rose as much as 8.6%, while Marubeni added almost 8% as of 10 a.m. Tokyo time. Mitsui & Co., Itochu Corp. and Sumitomo Corp. also had strong gains. The broader Topix index slid 0.4%.

Warren Buffett’s conglomerate said in 2020 that it had invested in Japan’s five largest trading houses. Berkshire originally agreed to keep its holdings at the companies below 10%, but the trading houses have agreed to relax the ceiling “moderately,” Buffett said in his annual investor letter dated Feb. 22.

“Trading houses are trading at well below their peak now, so Buffett probably sees this as a chance to buy more,” said Norikazu Shimizu, an analyst at IwaiCosmo Securities Co. “With Trump’s presidency and lots of changes to tariff policies, the market is uncertain, but trading houses are involved in a wide range of business, so Buffett likely sees them as a safe bet.”

The trading houses — which run businesses spanning overseas oil and gas production to salmon farming and TV shopping — and have outpaced the Nikkei 225 since Buffett’s investment was announced. While the companies have benefited from a surge in commodity prices from 2022, their diversity in other segments helps them weather price volatility.

Buffett’s interest “is proof that the trading company sector, including our company, is highly valued,” Marubeni said in an emailed statement. Itochu said it’s progressing talks with Berkshire on potential collaborations, such as Duracell or Fruit of the Loom, according to a statement from the Japanese company. Berkshire’s sprawling businesses include the battery brand and the retailer.

Read: Buffett’s Berkshire Tops $1 Trillion in Market Value

Buffett praised Japan’s trading firms for increasing dividends when appropriate, conducting share buybacks when it is “sensible to do so,” and for being less aggressive in their executive pay than US counterparts.

“Over time, you will likely see Berkshire’s ownership of all five increase somewhat,” the veteran investor said. “Our holdings of the five are for the very long term, and we are committed to supporting their boards of directors.”

Story Continues

Mitsubishi is in discussion with Berkshire on cooperating on individual projects, including through joint investments, the Tokyo-based trading house said on Sunday. Mitsui says it plans to have a dialog with Berkshire going forward.

“This is a tailwind for trading company stocks as a whole, and it seems likely to lead to a certain sense of security for investors,” said Hideyuki Ishiguro, chief strategist at Nomura Asset Management Co.

--With assistance from Andrew Janes, Toshiro Hasegawa and Momoka Yokoyama.

(Updates with comment from analyst in fourth paragraph, companies from sixth paragraph onward.)

Most Read from Bloomberg Businessweek

Walmart Wants to Be Something for Everyone in a Divided America Meet Seven of America’s Top Personal Finance Influencers Why Private Equity Is Eyeing Your Nest Egg Can Dr. Phil’s Streaming Makeover Find an Audience in the MAGA Era? How Med Spas Conquered America

©2025 Bloomberg L.P.

View Comments