Industry Group
An industry group is the second tier of the GICS classification hierarchy, sitting between a broad sector and a more specific industry, and represents a cluster of businesses that share closely related economic characteristics, supply chains, or end-market exposures even if their specific products or services differ.
The GICS system currently defines twenty-four industry groups spread across eleven sectors. Each sector contains between one and five industry groups depending on the breadth and internal diversity of the sector. The Financials sector, for example, contains three industry groups — Banks, Diversified Financials, and Insurance — reflecting the materially different operating models, risk profiles, and regulatory regimes of commercial banks, investment firms, and insurers. The Industrials sector contains three industry groups — Capital Goods, Commercial & Professional Services, and Transportation — that share the common characteristic of serving business-to-business or infrastructure needs but differ significantly in their economic sensitivities.
For equity research and portfolio construction, industry groups represent a practical level of granularity for peer comparison and valuation. A semiconductor company and an enterprise software company are both classified within the Information Technology sector, but they belong to different industry groups — Semiconductors & Semiconductor Equipment versus Software & Services — reflecting their very different cost structures, capital intensities, and revenue cycle dynamics. Comparing valuation multiples within an industry group provides more meaningful peer context than comparing across an entire broad sector.
Institutional investors commonly use industry group allocations to express medium-grained views about economic cycles. Within Financials, overweighting Banks relative to Insurance reflects a view on credit growth and interest rate spreads. Within Consumer Discretionary, overweighting Retailing versus Consumer Services reflects a view about consumer spending channels.
Sector-level ETFs track the full sector, but there are also industry-group-level products. ETFs focused specifically on biotechnology, semiconductors, or regional banks allow targeted exposure at the industry group or industry level rather than requiring investors to own the full sector. Understanding the industry group structure of GICS helps investors select the right level of specificity for sector rotation, thematic allocation, and benchmark deviation strategies.