Apple, AmEx, BofA, Alphabet and Coca-Cola accounted for two-thirds of total equity fair value, underscoring Warren Buffett’s long-held preference for concentration over broad diversification.
Berkshire Hathaway’s five biggest equity positions — Apple, AmEx, BofA, Alphabet and Coca-Cola — represented 66% of its total equity fair value as of June 30, 2026. The snapshot highlights how concentrated the conglomerate’s listed stock portfolio remains, with a relatively small group of core holdings carrying most of the portfolio’s value. The post also pointed to Buffett’s longstanding view on portfolio construction, citing his line that "diversification is protection against ignorance," as evidence that the firm’s preference for a focused set of high-conviction investments remains in place.