June 17, 2026 · 12 min read
Warren Buffett has beaten the S&P 500 over his career — but BRK/B has lagged SPY in several recent years. A complete data-driven comparison to help you decide whether Berkshire deserves a place in your portfolio.
From 1965 to 2024, Berkshire Hathaway delivered a 19.8% compound annual gain — versus 10.2% for the S&P 500 with dividends reinvested. A single $1,000 invested in Berkshire in 1965 would have grown to over $40 million by 2024. The same $1,000 in the S&P 500: roughly $300,000.
The compounding machine rests on several structural advantages that most investors cannot replicate:
~$170B of 'free' investable capital generated by collecting premiums before paying claims. This float has historically cost near-zero or even generated profit.
Buffett's primary skill: deploying capital into the highest-return opportunities across public equities, private acquisitions, and buybacks. Rare among CEOs.
Berkshire has no quarterly earnings calls that require hitting analyst estimates. Buffett thinks in decades, not quarters — allowing him to buy when others are panicking.
Unlike most financial companies, Berkshire uses debt conservatively. The fortress balance sheet ($330B cash) means Berkshire survives every crisis and often thrives by buying distressed assets.
Berkshire is best understood as four distinct businesses bundled under one holding company structure. Understanding all four is essential to valuing the stock.
Berkshire's insurance subsidiaries collect ~$80B in premiums annually and pay claims over time. The gap — the 'float' — creates $170B of investable capital that Berkshire effectively borrows at near-zero or negative cost. This is Berkshire's most powerful structural advantage. GEICO alone insures ~15 million vehicles and is the second-largest US auto insurer. Note: GEICO has faced headwinds from rising claims inflation in 2022–2024 but is recovering margins.
BNSF Railroad — the second-largest US freight railroad by revenue — alone generates $5B+ in annual earnings. Berkshire Hathaway Energy (BHE) operates utilities and pipelines across 11 states. Precision Castparts manufactures aerospace components. These businesses generate steady, recession-resistant cash flows that don't require stock market exposure to compound. Combined, the operating businesses earn ~$20B+ per year.
Berkshire holds a concentrated public stock portfolio of $330B+. Apple alone is ~28% of the portfolio. Unlike a mutual fund, Berkshire holds stocks indefinitely — Coca-Cola since 1988, American Express since 1994. The portfolio generates ~$6B in annual dividends which Berkshire reinvests. Berkshire's cost basis on Apple is ~$31/share — a position now worth 10× the purchase price.
As of Q1 2026, Berkshire holds approximately $330B in cash and short-term government securities — earning 5%+ risk-free. This represents a failure to find attractively priced acquisitions at Berkshire's scale, but also the world's largest 'dry powder' position. If markets crash 40–50%, Berkshire can deploy hundreds of billions at distressed prices, as it did in 2008–2009.
Annual returns are approximate total returns. Berkshire does not pay dividends — returns are pure price appreciation. S&P 500 figures include dividend reinvestment.
| Period | BRK/B Ann. Return | SPY Ann. Return | Winner | Note |
|---|---|---|---|---|
| 1 Year (2025) | 18.4% | 23.1% | SPY | Tech mega-caps drove S&P 500; Berkshire's Apple stake helped but diversification limited upside |
| 3 Years (2023–25) | 16.2% | 12.1% | BRK | Post-rate-rise environment favored Berkshire's insurance and banking holdings |
| 5 Years (2021–25) | 14.8% | 15.3% | SPY | Near parity; Magnificent 7 concentration in S&P 500 a tailwind |
| 10 Years (2016–25) | 13.9% | 13.2% | BRK | Modest BRK edge; operating businesses compound alongside equity portfolio |
| 20 Years (2006–25) | 11.8% | 10.4% | BRK | Longer compounding period favors BRK's operating earnings quality |
| 30 Years (1996–25) | 14.2% | 10.8% | BRK | Buffett's compounding machine at its most pronounced over full market cycles |
Takeaway: Over full market cycles, Berkshire and the S&P 500 deliver roughly similar annualized returns with BRK holding a modest edge at 20–30 year horizons. BRK tends to outperform in down markets and underperform in the strongest tech/growth bull runs.
Buffett turned 95 in August 2026 and remains Berkshire's CEO. The succession question is the single largest unknown hanging over the stock.
Berkshire has two share classes. BRK/A is the original share, trading around $700,000+ each. BRK/B was created in 1996 as a more accessible version, trading at approximately 1/1500th of BRK/A.
Suitable for ultra-high-net-worth investors who value voting influence. Never trade due to extreme price.
Practical for all investors. Same economic exposure. Liquid, easily tradable, and fractional shares available.
The economic value is mathematically equivalent: 1 BRK/A = 1,500 BRK/B. The only real difference for most investors is the voting weight and the irreversibility of BRK/B. For the vast majority of retail investors, BRK/B is the correct choice.
The equity portfolio (~$330B+) is concentrated in high-quality businesses Buffett has owned for decades. Here are the top holdings with approximate portfolio weights.
Note: Percentages are approximate and based on public 13F filings. Apple's share has declined from 40%+ following partial sales in 2024. The equity portfolio does not include wholly-owned businesses.
The honest bear case for BRK/B is not about the quality of the business — it's about structural challenges that come with being a $1T company.
At $1T market cap, Berkshire needs $50B+ acquisitions to move the needle. There are very few companies at that scale available at attractive prices. The 'elephant gun' has fewer targets.
Buffett's roots in cheap, asset-heavy businesses clash with the tech-driven economy. Missing Amazon, Google, and Facebook early cost Berkshire enormous alpha. He has acknowledged this.
GEICO and the reinsurance businesses face rising claims from climate-related events: hurricanes, wildfires, floods. This could structurally increase the cost of the insurance float.
At 5% T-bill rates, $330B earns ~$16B/year. But deployed into equities or operating businesses at 12–15% returns, it would earn $40–50B. The cash hoard is both protection and drag.
Part of Berkshire's valuation reflects trust in Buffett specifically. If markets price in lower confidence in Abel/Combs, the multiple may compress even if the underlying businesses are fine.
| Metric | BRK/B | VTI |
|---|---|---|
| 10yr Annualized Return (approx) | ~13.9% | ~13.4% |
| Dividend Yield | 0% (none) | ~1.3% |
| Expense Ratio | 0% (stock) | 0.03% |
| Holdings | 90+ operating + 10 top stocks | ~3,600 US companies |
| Volatility (Beta vs S&P 500) | ~0.85 (lower vol) | ~1.00 (tracks market) |
| Top Sector Concentration | Insurance, Railroads, Energy | Tech (~30%+ of index) |
| Tax Efficiency | No dividends = deferred taxes | Low turnover; ETF structure |
| Succession Risk | High — Buffett-dependent | None — index is mechanical |
| Correlation to S&P 500 | ~0.75 (some diversification) | ~0.99 (nearly identical) |
Starting value of 100 in 2016. Approximate, for illustration only. BRK/B includes no dividend; VTI/SPY include reinvested dividends.
Berkshire Hathaway is not a normal company — it is a holding company combining a publicly traded equity portfolio with wholly-owned operating businesses. Understanding both components is essential.
Berkshire's insurance subsidiaries collect premiums upfront and pay claims later — the gap creates the "float," approximately $170B of investable capital that costs Berkshire near-zero because premiums collected have historically exceeded claims paid. This float is the structural moat that gives Berkshire an investment advantage no ordinary investment company can replicate.
Berkshire Hathaway is one of the most exceptional wealth compounders in financial history. Its structural advantages — insurance float, wholly-owned operating businesses, Buffett's capital allocation, and fortress balance sheet — are genuinely rare and difficult to replicate.
But the honest answer for most investors is: a simple low-cost S&P 500 index fund (VOO or VTI) remains the default superior choice for long-term wealth building. The index automatically captures every future winner, costs less, requires no succession trust, and provides broader diversification.
The best approach for investors interested in both: own a core index fund position (70–90% of equity allocation) and a 5–15% BRK/B position as a quality complement. You get Buffett's capital allocation on a slice of your portfolio without betting everything on succession.
Never view BRK/B as an index fund substitute — it is a single-stock position with all the risks that entails, including succession, regulatory, and climate risks specific to its businesses.