Market Sectors
Learn how the stock market is divided into sectors, how different industries behave, and why sector leadership changes over time.
What Are Market Sectors?
Companies Are Grouped by What They Do
Market sectors group companies with similar business activities. This helps investors compare industries and understand which parts of the economy are leading or weakening.
Sector
A broad group of companies with similar business activity.
Industry
A more specific group inside a sector.
Sector Performance
Shows how one area of the market is performing relative to others.
The 11 Market Sectors
Different Parts of the Economy
Technology
Software, semiconductors, hardware, and IT services.
Healthcare
Pharmaceuticals, biotech, medical devices, and healthcare services.
Financials
Banks, insurance companies, brokers, and financial services.
Consumer Discretionary
Non-essential products such as autos, retail, and entertainment.
Consumer Staples
Essential products such as food, beverages, and household goods.
Energy
Oil, natural gas, drilling, and energy services.
Industrials
Manufacturing, transportation, aerospace, and machinery.
Materials
Chemicals, metals, mining, packaging, and construction materials.
Utilities
Electricity, natural gas, and water utilities.
Real Estate
Property companies and real estate investment trusts.
Communication Services
Telecom, media, entertainment, and digital communication companies.
Cyclical vs. Defensive
Some Sectors React More to the Economy Than Others
Cyclical Sectors
Tend to be more sensitive to economic growth and consumer spending. Examples include consumer discretionary, industrials, financials, and materials.
Defensive Sectors
Tend to provide products and services people continue using even when economic growth slows. Examples include utilities, consumer staples, and healthcare.
These are broad tendencies, not guarantees. Individual companies inside the same sector can behave very differently.
Sector Performance
Not Every Part of the Market Moves Together
Investors compare sectors to see which areas are outperforming or underperforming the broader market.
Sector Rotation
Market Leadership Can Change
Sector rotation describes money shifting between different areas of the market as expectations for growth, inflation, interest rates, and risk change.
01
Expectations Change
Economic or market expectations begin to shift.
02
Capital Moves
Investors increase or reduce exposure to certain sectors.
03
Leadership Changes
Some sectors begin outperforming others.
04
Market Reprices
Relative sector performance adjusts to the new environment.
What Affects Sectors?
Different Sectors Respond to Different Forces
Interest Rates
Can affect borrowing costs, valuations, banks, utilities, and real estate.
Commodity Prices
Can strongly influence energy and materials companies.
Consumer Spending
Can affect retailers, travel companies, restaurants, and other consumer businesses.
Economic Growth
Can influence industrials, financials, materials, and cyclical businesses.
Technology Trends
Can create growth opportunities or disrupt existing industries.
Government Policy
Regulation, taxes, and spending can affect certain sectors differently.
Comparing Sectors
Look at More Than Price Performance
Key Lesson
The stock market is made up of different sectors, and leadership changes as economic conditions and investor expectations change. Understanding sectors helps explain what is driving the broader market.