When do sectors move together? This visual maps quarterly returns across U.S. industry sectors from 2008 to 2025. Each row represents a sector, each column a year, and each dot a sector’s quarterly performance—blue for gains, red for losses. Most periods are dominated by blue, confirming that equity markets tend to rise over time in aggregate. However, during extreme episodes, sectors move more tightly together. Waves of uniform blue in boom phases and uniform red during crises such as 2008 reveal heightened comovement across industries. Data & MethodMonthly value-weighted returns with dividends for 49 U.S. industry portfolios, 2008–2025, from the Kenneth R. French Data Library. Returns compounded quarterly. Excludes transaction costs, management fees, and taxes. Product Specifications Format: A5 (148 × 210 mm)Orientation: LandscapePaper: 350 g/m² uncoated paperPrinting: High-resolution digital printFinish: MatteFrame: Not includedPackaging: Flat protective sleeveProduction: Printed in France (Paris)
