NAICS 523110

Investment Banking & Securities Dealing

Key Figures

Establishments
3,808
Census CBP · 2023
Employment
90,089
Census CBP · 2023
Market size
$104.9B
Census Economic Census · 2017

Figures are published for NAICS 523110 directly.

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Official definition

This industry comprises establishments primarily engaged in underwriting, originating, and/or maintaining markets for issues of securities. Investment bankers act as principals (i.e., investors who buy or sell on their own account) in firm commitment transactions or act as agents in best effort and standby commitments. This industry also includes establishments acting as principals in buying or selling securities generally on a spread basis, such as securities dealers or stock option dealers.

Source: US Census Bureau, 2017 NAICS Definitions. Public domain.

Illustrative examples

  • Bond dealing (i.e., acting as a principal in dealing securities to investors)
  • Stock options dealing
  • Securities underwriting

Which code does this activity belong in?

NAICS 523110 covers establishments that act as principals in securities transactions, buying and selling securities on their own account on a spread basis, or underwriting new securities issues. The key distinction from securities brokerage is that investment bankers and dealers operate as principals risking their own capital, whereas brokers act as agents arranging transactions between other parties for a commission. Commodity contracts dealing and brokerage, by contrast, involve derivatives based on underlying commodities rather than direct ownership of securities.

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