A sector groups companies with similar business models and economic characteristics. In the GICS hierarchy, it is the broadest level, above industries and subindustries. Classification provides context for interpreting financial metrics because business models determine revenue patterns, expenditures, risks, and useful ratios. section 2.2 section 2.6
Use sector classification to frame analysis rather than treat it as a complete description:
- Check the company’s assigned sector before interpreting ratios; classifications can differ from common assumptions, as with Amazon, Tesla, and Google. section 2.2.1
- Identify sector-specific drivers such as interest rates, regulation, inflation, consumer spending, raw-material costs, and economic cycles. section 2.2 section 2.2.1
- Compare companies within the same industry when possible; cross-industry comparisons are less reliable, although solvency remains broadly relevant. section 2.6
Defensive and cyclical sectors
During the 2008 housing-market crisis, Consumer Staples companies such as Walmart and Coca-Cola held up better than more discretionary examples such as Ford. Sector indices XLK, XLP, and XLY make the contrast visible. Expansion tends to support discretionary spending, while contraction shifts consumers toward essentials. section 2.2.2
Table 2.1 GICS sectors and their influences
|
Sector
|
What it does
|
Influenced by
|
|---|---|---|
|
Utilities
|
Companies that provide essential services such as electricity, water, and natural gas
|
Interest rates, energy prices, regulation, and bond yields
|
|
Consumer Staples
|
Companies that produce essential products such as food, beverages, and household items
|
Interest rates, inflation, consumer confidence, and raw material costs
|
|
Consumer Discretionary
|
Companies that produce nonessential goods and services, including automobiles, apparel, and leisure
|
Consumer spending, unemployment rates, and disposable income
|
|
Communication Services
|
Companies that provide communication services, including telecom and media
|
Government regulation, intense competition, technology changes, general economic conditions, consumer and business confidence, spending, and changes in consumer and business preferences
|
|
Real Estate
|
Companies involved in the development, management, and operation of real properties
|
Demographic changes, interest rates, economic cycle, government policies, housing demand, and economic growth
|
|
Information Technology
|
Companies that produce software, hardware, or semiconductor equipment, and companies that provide internet or related services
|
Innovation, cybersecurity threats, and regulatory changes
|
|
Energy
|
Companies that play a role in extracting, refining, or supplying consumable fuels
|
Oil prices, geopolitical stability, and renewable energy trends
|
|
Health Care
|
Companies that provide medical services, manufacture medical equipment, or develop pharmaceuticals
|
Pandemics, regulation, drug pricing, and demographic changes
|
|
Financials
|
Companies that provide financial services, including banking, insurance, and investment
|
Interest rates, economic cycles, and regulatory changes
|
|
Industrials
|
Companies that produce goods used in construction and manufacturing, including machinery and equipment
|
Manufacturing output, trade policies, and commodity prices
|
|
Materials
|
Companies that provide raw materials used in the manufacturing process, including metals and chemicals
|
Commodity prices, supply chain stability, and environmental regulations
|
Use the sector-influence table to connect each GICS sector with the economic and business factors that may affect asset prices. section 2.2.1
