Warren Buffett's Stock Trades This Quarter: June 2026

Berkshire Hathaway filed its 13F for June 30, 2026, and the moves are striking. Buffett added $28.2 billion to Alphabet (GOOGL) in a 45 percent increase, spun up a new $9.6 billion position in Alphabet Class C shares (GOOG) from nothing, and trimmed Bank of America by 6 percent despite it remaining his fifth largest holding at $27.5 billion. He also exited Constellation Brands entirely after holding $94.9 million and cut his Capital One stake in half.

What are Buffett's biggest holdings right now?

Buffett's portfolio sits at $299.3 billion across 29 positions. His top three holdings alone account for nearly half his capital: Apple at 22.0 percent of book value, American Express at 17.1 percent, and Coca-Cola at 10.9 percent. The top 10 holdings consume 88.5 percent of his portfolio. This is a rare level of conviction in a small number of names. It is also a rare level of concentration risk for an investor of his scale.

!Berkshire's Top 10 Holdings. Buffett's ten largest positions represent 88.5 percent of his $299.3B portfolio.

Among these, the filing shows significant overweighting in financial services. Financials now make up 30.1 percent of his book. That puts him deep into American Express, Bank of America, Chubb, and Moody's. Technology represents 22.0 percent of his portfolio, consumer staples 13.4 percent, communications 9.4 percent, and energy 9.0 percent.

What did Buffett buy this quarter?

The biggest news is Google. Buffett added $28.2 billion to his Alphabet (GOOGL) position, a 45 percent increase. He also established a major new position in Alphabet Class C shares (GOOG), adding $9.6 billion from effectively nothing, which represents a 658 percent increase. Together, these two Alphabet positions now represent 12.6 percent of his portfolio. That is a significant bet on a single company across two share classes.

Outside of Google, the buying was more modest. Delta Air Lines (DAL) jumped to $5.4 billion, a 44 percent increase. Lennar (LEN), the homebuilder, rose to $1.2 billion on a 30 percent add. The New York Times (NYT) gained 4 percent to $1.1 billion. And Macy's (M) exploded from a tiny position to $173 million, a 142 percent increase.

The Google move is the quarter's headline. A 45 percent increase in GOOGL and a 658 percent increase in GOOG suggests Buffett was not waiting for a better entry point. He bought despite Alphabet trading significantly below what we rate as fair value. Our analysis shows GOOGL at 41 percent below fair value and GOOG at 114 percent above fair value, a gap that raises questions about whether Buffett views the two share classes differently or whether market pricing has created an arbitrage.

What did Buffett sell this quarter?

The selling was more tactical. Bank of America, his second largest holding at $27.5 billion, was trimmed by 6 percent. This is not an exit. BAC remains 9.2 percent of his book. But it is the first trim in a position he has held for years, and it signals either a reduction in conviction or a rebalancing away from concentration.

Capital One (COF) was the quarter's biggest cut. Buffett slashed it by 58 percent, leaving just $601.9 million. Nucor (NUE), the steelmaker, fell 53 percent to $413.8 million. Both moves suggest a retreat from cyclical bets. DaVita (DVA), the dialysis company, dropped 4 percent to $6.4 billion. Kroger (KR) fell 22 percent to $2.2 million. And Ally Financial (ALLY) eased 7 percent to $1.2 billion.

Constellation Brands (STZ), which held $94.9 million last quarter, was exited completely. The filing does not explain the reasoning, but the move suggests a decision to prune smaller positions.

How concentrated is Buffett's portfolio compared to his history?

The 88.5 percent concentration in the top 10 holdings is high even by Buffett's standards. His historic practice has been to maintain enough diversification that no single position dominates his returns. But this filing shows a portfolio increasingly weighted toward a handful of mega-cap names. Apple alone is 22 percent. American Express and Bank of America together are 26.3 percent. Add Coca-Cola and the top four positions are 59.2 percent of his $299.3 billion portfolio.

This shift appears deliberate. The buying in Alphabet, the trimming of Bank of America rather than selling it outright, and the exit from smaller positions like Constellation Brands all point to a conscious reweighting toward conviction names. Whether this reflects confidence in those names or simply a lack of alternatives worthy of new capital is not stated in the filing.

What does the data reveal about sector positioning?

The sector allocation shows financial services has become Buffett's heaviest bet. At 30.1 percent, it is nearly 8 percentage points ahead of technology. Technology at 22.0 percent is significant, but energy at 9.0 percent and communications at 9.4 percent suggest he is not overexposed to the highest-growth narratives in the market.

Consumer staples at 13.4 percent reflects his enduring interest in Coca-Cola and other defensive names. The 6.0 percent in "not classified" holdings likely includes cash equivalents and smaller positions without clear sectoral fit.

You can review Buffett's full position history and the complete filings for Berkshire Hathaway on SteadyShares, where every 13F filing is parsed and tracked alongside fundamental data on each holding.

The bottom line

Buffett went all-in on Google this quarter, doubling his Alphabet stake while maintaining or trimming everything else. This is a portfolio in its simplest form: a handful of mega-cap bets, a hedge in financial services, and heavy conviction in the companies he owns. The 88.5 percent concentration in the top 10 is not an accident.