| 523210 |
Exchanges, securities |
| 523210 |
Futures commodity contracts exchanges |
| 523210 |
Securities exchanges |
| 523210 |
Stock exchanges |
| 523210 |
Stock or commodity options exchanges |
| 523910 |
Individuals investing in financial contracts on own account |
| 523910 |
Investment clubs |
| 523910 |
Mineral royalties or leases dealing (i.e., acting as a principal in dealing royalties or leases to investors) |
| 523910 |
Mortgage dealers, buying and selling |
| 523910 |
Oil royalty dealing (i.e., acting as a principal in dealing royalties to investors) |