| CNQ | | Crude Petroleum & Natural Gas | 1017413 |
| CNR | | Silver Ores | 1710366 |
| CNRCF | | - | 1996586 |
| CNS | | Investment Advice | 1284812 |
| CNSP | | Pharmaceutical Preparations | 1729427 |
| CNTA | | Pharmaceutical Preparations | 1847903 |
| CNTB | | Pharmaceutical Preparations | 1835268 |
| CNTHP | | Electric Services | 23426 |
| CNTM | | Construction - Special Trade Contractors | 1895249 |
| CNTMF | | - | 1758124 |
| CNTX | | Pharmaceutical Preparations | 1842952 |
| CNTY | | Hotels & Motels | 911147 |
| CNVS | | Services-Video Tape Rental | 1173204 |
| CNX | | Crude Petroleum & Natural Gas | 1070412 |
| CNXC | | Services-Business Services, NEC | 1803599 |
| CNXN | | Wholesale-Computers & Peripheral Equipment & Software | 1050377 |
| COBA | | Metal Mining | 1727255 |
| COCH | | Orthopedic, Prosthetic & Surgical Appliances & Supplies | 1840877 |
| COCO | | Beverages | 1482981 |
| COCP | | Pharmaceutical Preparations | 1412486 |
| CODA | | Search, Detection, Navigation, Guidance, Aeronautical Sys | 1334325 |
| CODI | | Household Furniture | 1345126 |
| CODQL | | Silver Ores | 1770561 |
| CODX | | Surgical & Medical Instruments & Apparatus | 1692415 |
| COE | | Services-Educational Services | 1659494 |
| COEP | | Finance Services | 1759186 |
| COF | | National Commercial Banks | 927628 |
| COFS | | State Commercial Banks | 803164 |
| COGT | | Pharmaceutical Preparations | 1622229 |
| COHN | | Security Brokers, Dealers & Flotation Companies | 1270436 |
| COHR | | Optical Instruments & Lenses | 820318 |
| COHU | | Instruments For Meas & Testing of Electricity & Elec Signals | 21535 |
| COIN | | Finance Services | 1679788 |
| COKE | | Bottled & Canned Soft Drinks & Carbonated Waters | 317540 |
| COLA | | Blank Checks | 2028201 |
| COLB | | State Commercial Banks | 887343 |
| COLD | | Real Estate Investment Trusts | 1455863 |
| COLL | | Pharmaceutical Preparations | 1267565 |
| COLM | | Apparel & Other Finishd Prods of Fabrics & Similar Matl | 1050797 |
| COMM | | Radio & Tv Broadcasting & Communications Equipment | 1517228 |
| COMP | | Real Estate Agents & Managers (For Others) | 1563190 |
| CON | | Services-Specialty Outpatient Facilities, NEC | 2014596 |
| CONC | | Radio & Tv Broadcasting & Communications Equipment | 790273 |
| COO | | Ophthalmic Goods | 711404 |
| COOK | | Household Appliances | 1857853 |
| COOT | | Fats & Oils | 1959994 |
| COP | | Petroleum Refining | 1163165 |
| COPL | | Blank Checks | 2045473 |
| COPR | | Metal Mining | 1263364 |
| COR | | Wholesale-Drugs, Proprietaries & Druggists' Sundries | 1140859 |