Berkshire Boosts Alphabet, Exits Amazon, Returns to Airlines: Buffett's Q1 Pivot Signals Sector Rotation

Berkshire Hathaway's portfolio moves in Q1 2026, revealed in late May filings, tell a story of portfolio reallocation under new CEO Greg Abel. The conglomerate increased its Alphabet (Google) position, completely exited Amazon despite years of holding, and deployed 2.6 billion dollars into DeltaHow much an option's price changes per $1 move in the underlying. Air Lines, making it Berkshire's 14th-largest holding. These are not marginal tweaks; they represent strategic conviction in a new market regime.

The exit from Amazon is particularly striking. Under Warren Buffett, Berkshire had maintained a long position in Amazon for years, betting on its cloud dominance and retail juggernaut. Abel's decision to exit entirely suggests that at current valuations, driven by AI enthusiasm and mega-cap concentration, Amazon no longer justifies Berkshire's risk appetite. This is consistent with recent commentary from UBS and other strategists warning that mega-cap dominance, powered by passive AI money, may have peaked. With the SPX concentration ratio at multi-year highs (top 10 stocks now 38-40% of the index), large active managers are beginning to fade the trade.

The Alphabet boost is more nuanced. Google remains a mega-cap AI play, but with a more diversified earnings base (search, cloud, YouTube advertising). Buffett has always favored Alphabet's brand moatA sustainable competitive advantage that protects long-term returns on capital. and free cash flowCash generated after maintenance capex; the actual money the business throws off. generation. Abel's increase may reflect confidence that Google's AI rollout (Gemini, search integration) is more stable than Nvidia's exponential capex assumptions, even if growth is slower. It is also a way to stay exposed to the AI theme without the binary risk of pure-play semis.

The DeltaHow much an option's price changes per $1 move in the underlying. addition is the most contrarian move. Airlines have been out of favor for years due to fuel and labor cost pressure. But Delta is benefiting from elevated air travel demand (post-pandemic carryIncome earned from holding a position over time.-on) and fuel hedge benefits as oil prices, while volatile, remain manageable on a structural basis. More importantly, Delta's valuation was cheap relative to its free cash flowCash generated after maintenance capex; the actual money the business throws off. generation, and higher yields in the bond market make dividend-paying stocks more attractive. Berkshire's addition of 2.6 billion dollars to Delta signals comfort with the airline recovery narrative and confidence that commodity-driven headwinds are priced in.

This rotation also reflects Berkshire's own capital positioning: with 28+ billion dollars in cash reported at year-end 2025, Abel has flexibility to deploy capital opportunistically. The pivot away from Amazon and into Alphabet plus airlines is a hedge against both mega-cap concentration risk and broader market volatility, while maintaining exposure to structural growth (Google AI, airline recovery).