Berkshire Hathaway’s BRK.B success is often linked to former CEO Warren Buffett’s ability to identify high-quality businesses at attractive prices. Equally important, however, has been the company’s use of insurance “float” as a powerful source of investment capital.
Insurance float represents premiums collected before related claims are paid. Berkshire receives cash upfront from policyholders, while claims may not be settled for months or even years. During that period, the company can invest the assets backing those future obligations across stocks, bonds and operating businesses. Importantly, float is not permanent capital, as Berkshire remains responsible for meeting policyholder claims when they arise.
This model becomes valuable when combined with disciplined underwriting. Profitable insurance operations generate float at a low cost, allowing Berkshire to deploy substantial capital into investments and acquisitions that can produce additional returns.
Berkshire’s float increased to about $177.5 billion as of June 30, 2026, from roughly $114 billion at the end of 2017, significantly expanding its investment capacity. This source of funding reduces the company’s dependence on shareholder capital or external borrowing while supporting continued expansion across its diversified businesses.
Insurance float is therefore far more than just an accounting concept. It is a structural funding advantage that has helped Berkshire compound capital over decades and become one of the world’s most formidable capital-allocation businesses.
What About BRK.B’s Peers?
Chubb Limited CB and The Travelers Companies TRV are two other notable companies in the insurance space.
Chubb Limited’s disciplined approach to capital deployment emphasizes strong underwriting, prudent reserve practices and selective acquisitions to broaden its global presence and enhance specialty capabilities. Chubb also prioritizes long-term value creation through consistent shareholder returns via dividends and buybacks, while investing in technology and risk management to drive sustainable growth.
The Travelers Companies deploys capital prudently by focusing on disciplined underwriting, accurate risk assessment and data-informed pricing, ensuring stable profitability and financial resilience. Travelers drives long-term value through continued investments in technology and analytics, while consistently returning excess capital to shareholders via dividends and share buybacks.
BRK.B’s Price Performance
Shares of BRK.B have gained 0.4% year to date, outperforming the industry.
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BRK.B’s Expensive Valuation
BRK.B trades at a price-to-book value ratio of 1.44, above the industry average of 1.38.
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Estimates for BRK.B
The Zacks Consensus Estimate for BRK.B’s third-quarter and fourth-quarter 2026 EPS has witnessed no movement over the past 30 days. The same holds true for 2026 and 2027.
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The consensus estimates for BRK.B’s 2026 and 2027 revenues and earnings indicate year-over-year increases.
BRK.B stock currently carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.
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This article originally published on Zacks Investment Research (zacks.com).