The transition at Berkshire Hathaway from Warren Buffett to Greg Abel at the start of 2026 was the most anticipated leadership change in American corporate history, and the first quarterly earnings report under Abel’s stewardship, released on March 2, gave the market its initial read on whether the new CEO’s instincts match the institutional culture he inherited from the world’s most celebrated investor.
They did, at least in terms of communication: Abel used his first annual shareholder letter to reassure investors that the conglomerate’s culture of financial conservatism and disciplined investing will continue “into perpetuity,” a word choice that was clearly deliberate, designed to signal philosophical continuity rather than the kind of strategic pivot that activist investors or growth-oriented shareholders might have hoped to extract from a leadership change of this magnitude.
The numbers were less reassuring, and the market’s reaction reflected that clearly: Berkshire shares fell approximately 5% on March 2, a decline that makes it the largest single-day drop in the stock since the immediate post-pandemic volatility of 2020, driven almost entirely by a fourth quarter earnings report that showed operating earnings of $10.2 billion, down more than 29% from $14.56 billion in the same quarter the previous year.
The primary driver of that decline was weakness in the insurance Business, which has historically been one of Berkshire’s most reliable earnings engines: insurance underwriting profits fell 54% to $1.56 billion from $3.41 billion in the year-earlier quarter, a magnitude of deterioration that cannot be attributed to a single catastrophe event or a short-term pricing cycle and that raises questions about whether the insurance underwriting environment has genuinely shifted against Berkshire’s model.
The timing of the earnings release was complicated by the broader market backdrop: the S&P 500 also fell on March 2 as the initial shock of the Iran strikes, which had occurred over the prior weekend, rippled through equity markets and sent investors toward cash and energy assets rather than holding broad equity exposure regardless of underlying company fundamentals.
Abel’s conservatism is not universally valued in the current market environment, where technology companies with aggressive capital allocation strategies and AI investment narratives have consistently commanded the highest multiples, and some analysts have quietly questioned whether Berkshire’s traditional reluctance to pursue large acquisitions or deploy the cash pile that had grown to record levels under Buffett will persist under Abel’s stewardship.
The insurance underwriting collapse is the specific metric that will receive the most scrutiny across the remainder of 2026, because Berkshire’s investment income and railroad operations have performed adequately, but the insurance business underpins the float model that gives Berkshire its unique structural advantage over other large-cap conglomerates, and a sustained deterioration there would represent a more fundamental challenge than a single bad quarter can explain.
Abel’s “into perpetuity” framing is the right message for long-term shareholders who bought Berkshire specifically because of the culture Buffett built, but it is a message that by definition forecloses the kind of rapid strategic evolution that the current technology and AI investment environment arguably rewards, making Berkshire’s near-term performance trajectory dependent on a recovery in insurance underwriting rather than any new strategic direction the new CEO might otherwise choose to pursue.