Berkshire Exiting Amazon, Boosting Alphabet: Greg Abel's First Quarter Signals Mega-Cap Rotation

Greg Abel's first quarter as Berkshire Hathaway CEO brought a notable portfolio recalibration that underscores shifting institutional conviction on which mega-cap platforms will lead the next leg of AI value creation. The sale of the entire Amazon position (signaling reduced conviction on cloud and e-commerce moats) paired with a boost to Alphabet holdings suggests Abel (and by extension Warren Buffett's influence) believe Google's search dominance and emerging AI integration (like Gemini, search ads powered by Gen AI) offer better risk-reward than Amazon's AWS cloud business or Amazon's consumer ecosystem.

The Amazon exit is particularly striking given Berkshire's historic belief in the business model and CEO Andy Jassy's track record. Possible rationales include: valuation concerns (Amazon near all-time highs), skepticism on AWS AI moatA sustainable competitive advantage that protects long-term returns on capital. durability against Azure and custom chips from Google Cloud, or broader conviction that retail/consumer spending is vulnerable to macro headwinds. The Alphabet upgrade reflects the opposite thesis: Google's 90% search market share and emerging Gen AI integration into search ads represent sticky, defensible revenue streams less vulnerable to capex intensity and competition.

Berkshire also held significant Chevron and exited roughly $8 billion of the position as oil prices spiked, a rotation away from energy into mega-cap tech. This move accelerated amid the Iran war oil shock, suggesting Abel is either taking profits on energy or reducing macro beta ahead of Fed regime change and potential recession. The portfolio shift has implications for sector rotations: if mega-cap money is rotating from Amazon (cloud, consumer) to Alphabet (search, advertising, AI services), then cloud infrastructure plays (like Broadcom, Marvell) may face relative headwinds despite AI tailwinds.

Sceptical takes note that Berkshire's mega-cap concentration risk is accelerating, with Berkshire now heavily tilted toward Chevron, Apple, Coca-Cola, and Alphabet. If macro deteriorates and yield-sensitive equities sell off, Berkshire's portfolio is not insulating shareholders from downside. Additionally, the Amazon exit may prove premature if cloud capex accelerates further under new CFO leadership or if AWS margin expansion exceeds expectations. The timing, exiting Amazon during an AI boom when cloud adoption is accelerating, invites criticism that Buffett (via Abel) has overcommitted to the value narrative at the expense of growth capture.