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Stock Expert AI

Stock Market Industries

238 industries · 35,861 stocks · AI-powered analysis

What Are Stock Market Industries?

The Global Industry Classification Standard (GICS) subdivides the stock market into sectors and industries, giving investors a structured way to compare companies that share similar business models, revenue drivers, and competitive dynamics.

Stock Expert AI currently tracks 238 industries spanning 35,861 publicly traded stocks across all 11 GICS sectors. The largest industry by company count is Asset Management with 8,095 stocks, while the most specialized is Utilities - Regulated Gas with 3 stocks.

Each industry page on Stock Expert AI includes AI-powered MoonshotScore ratings, real-time top gainers and decliners, market-capitalization distribution charts, and a complete stock table.

Use the table of contents above to jump directly to a specific sector group, review the largest industries by stock count, or read the FAQ and methodology sections for a deeper understanding of how our coverage is structured and scored.

Which Industries Have the Most Companies?

Other Industries

Frequently Asked Questions

How many stock market industries does Stock Expert AI cover?

Stock Expert AI covers 238 industries across all 11 GICS sectors.

What is the difference between sectors and industries in stock analysis?

Sectors are broad market categories (like Technology or Healthcare) while industries are more specific sub-groups within sectors (like Semiconductors or Biotechnology).

How can I use industry analysis for stock picking?

Industry analysis helps you identify which segments of the economy are growing fastest, find top-performing companies within specific niches, and compare stocks against their direct peers.

What is a MoonshotScore and how is it calculated?

The MoonshotScore is Stock Expert AI's proprietary 0-to-100 rating. U.S.-listed common stocks are scored against sector peers across five pillars — business quality, financial safety, valuation, growth durability, and momentum — while ETFs, OTC and foreign listings use a legacy nine-signal quantitative model. Scores are recalculated daily.

How often is industry data updated?

Industry data including stock prices, market capitalizations, and MoonshotScores is updated throughout each trading day.

Our Analysis Methodology

Stock Expert AI evaluates every publicly traded U.S. stock using the MoonshotScore, a proprietary 0–100 composite rating. U.S.-listed common stocks are scored against their sector peers across five pillars: business quality, financial safety, valuation, growth durability, and momentum. ETFs, OTC names, and foreign listings use a legacy nine-signal quantitative model spanning growth, margins, cash position, insider activity, liquidity, momentum, and news sentiment.

Price data is sourced from Financial Modeling Prep (FMP) with Yahoo Finance as a fallback. Fundamental data comes from SEC filings, FMP, and Alpha Vantage. Sentiment signals are derived from aggregated analyst ratings and news flow. All metrics refresh during market hours; after-hours data reflects the most recent closing values.

Sector and industry classifications follow the Global Industry Classification Standard (GICS), the same taxonomy used by S&P and MSCI. Companies are assigned to one of 11 sectors and further classified into 50+ industries based on their primary revenue source.

Explore More

All Sectors →
Compare all 11 GICS sectors by size, performance, and AI scores.
Stock Screener →
Filter stocks by industry, market cap, MoonshotScore, and dozens of other criteria.
Discover →
Search for any stock by ticker, company name, or keyword.

Evidence & Sources

  • Data sources used on Stock Expert AI include FMP (Financial Modeling Prep), Alpaca, Finnhub, Alpha Vantage, and SEC filings where available.
  • Definitions follow standard investing terminology, with key terms explained inline in plain language where useful.
  • Financial data is refreshed regularly from real-time and delayed market feeds.
  • This page is educational and does not constitute investment advice.
  • All analysis is generated by AI models and should be verified with independent research.

Last updated: 2026-07-11