523910  Miscellaneous Intermediation 

This industry comprises establishments primarily engaged in acting as
principals (except investment bankers, securities dealers, and
commodity contracts dealers) in buying or selling of financial
contracts generally on a spread basis. Principals are investors that
buy or sell for their own account.

The data published with NAICS code 523910 include these parts of the following
SIC industries:

     6211 (pt)  Traders & dealers (except for securities & commodities)
     6792 (pt)  Oil royalty traders investing on own accounts
     6799 (pt)  Venture capital companies
     6799 (pt)  All other investors