Insurance and reinsurance are the foundation of Berkshire’s wealth engine.
In simple terms, insurance companies collect premiums today to cover potential claims in the future. Reinsurance takes that one step further — it’s insurance for insurers, where Berkshire agrees to absorb portions of risk from other carriers in exchange for additional premiums. This creates a steady inflow of cash, known as “float,” that Buffett and his team can invest long before claims ever come due. That unique structure provides Berkshire with a powerful, low-cost source of capital that ordinary investors simply don’t have access to.

Investors sometimes assume that because Buffett keeps large cash reserves, they should too. However, Berkshire’s cash isn’t just a store of unused reserves. It serves as a financial safeguard, ensuring the insurance arm can meet its obligations in any market environment. This capital must remain both liquid and dependable—not out of Buffett’s fear of a downturn, but because such liquidity is a core part of Berkshire’s business model.

Individual investors must operate within entirely different parameters — managing risk, liquidity, taxes, and time horizons. A well-constructed, diversified portfolio doesn’t aim to mimic Berkshire’s balance sheet but rather to maintain steadier performance through a mix of equities and bonds. And in 2025, that diversification paid off: Berkshire’s stock has underperformed many balanced portfolios this year, reflecting its heavy exposure to the insurance and industrial sectors while bonds and growth equities have rebounded.

People often forget that Buffett himself faced periods of deep financial strain — from the textile mill losses that nearly sank Berkshire in its early years to the 1970s and early 1990s, when poor acquisitions and heavy leverage threatened the empire he was building. Even legends endure hardships on the path to success. In more recent years, the merger of Kraft and Heinz — now being quietly unwound — proved to be another reminder: value investing and cost-cutting alone couldn’t offset shifting consumer tastes and the decline of legacy packaged food brands in a fast-changing global market.

The lesson is simple: Berkshire Hathaway is an extraordinary company, not a model portfolio or investment concept. Its access to float, scale, and leverage make it more akin to a small financial system than to a household investment account. For most investors, success comes not from imitation but from discipline, diversification, and alignment with personal goals.

Amy and I both “grew up” in a value-investing shop back East, and Warren Buffett has long been one of the great students and practitioners of that discipline. Yet the world has changed dramatically over the past 30 years. Limiting a portfolio strictly to value stocks would have meant missing much of the market’s growth, particularly during long stretches — such as the past 15 years — when growth stocks have outperformed value by a wide margin.

The press has made Buffett everyone’s financial grandfather. He’s portrayed as the kindly oracle whose patience and plain talk soothe investors through every crisis, a figure of folksy stability in a world obsessed with volatility. Yet the image obscures a sharp reality: Buffett is no quaint relic of the past but a ruthless allocator of capital who evolved with every era of American capitalism in the past. The grandfatherly myth comforts us, but it also lets us ignore how disciplined, opportunistic, and unsentimental his success was.

So, admire Warren Buffett — but don’t compare yourself, or how you manage your money, to him. Your portfolio isn’t meant to fund an empire with a market capitalization of roughly $880 billion; it’s designed to fund your life, sustain your standard of living, and grow ahead of inflation. We work hard every day at Tandem Wealth to achieve this for you.