This visual compares U.S. stock market concentration across three decades by displaying the top 20 listed companies by market capitalization. Each horizontal rectangle represents one company, with area proportional to its market value. The left half shows 1995; the right half shows 2025. In 1995, market value was relatively evenly distributed among large firms. By 2025, the largest companies occupy dramatically larger areas, revealing the rise of market concentration and the dominance of a small number of firms in U.S. equity markets.
Data & Method Top 20 S&P 500 companies by market capitalization in December 1995 and January 2025. Areas scaled proportionally within each year’s top-20 total.
Product Specifications
Format: A5 (148 × 210 mm) Orientation: Portrait Paper: 350 g/m² premium uncoated paper Printing: High-resolution digital print Finish: Matte Frame: Not included Packaging: Flat protective sleeve Production: Printed in France (Paris)
