How Berkshire's stock has actually performed
$10,000 invested in Berkshire Hathaway (BRK.B) at the start of 2017, tracked year by year against the same amount in the S&P 500 (SPY). This measures the whole company's stock — insurance float, wholly-owned subsidiaries, and all — not just the disclosed 13F equity sleeve shown on the Holdings page.
Annualized returns to the trailing period shown. Source: PortfoliosLab, data as of Aug 26, 2026. 2026 is year-to-date.
Methodology
Year-by-year total returns for BRK.B and SPY are pulled from a third-party return-comparison source and compounded here into an indexed $10,000 growth line — standard practice for this kind of comparison, and the same approach used by most performance-tracking sites. It is not a projection or guarantee of future results. Refresh the assets/performance-data.json file each year (or quarter) to keep this chart current; the chart re-renders automatically from that file.