Stock symbols range in length from 1 to 5 characters, and can be further broken down by exchange. There are many types of stocks, ranging from common to preferred, and with different classes.
| Description | Suffix |
| Class n | .N |
| Class n Called | .NL |
| Class n Convertible | .NV |
| Class n When Issued | .N* |
| Called | .L |
| Certificate | .T |
| Convertible | .V |
| Convertible Called | .VL |
| Part Called | .PT |
| Preferred | - |
| Preferred n | -N |
| Preferred Called | -L |
| Preferred When Issued | -* |
| Rights | .R |
| Warrants | .WS |
| Warrants n | .WS.N |
| When Issued | * |
| Emerging Company Common | .EC |
| Emerging Company Preferred | -EC |
| Emerging Company Warrant | .WS.EC |
| Emerging Company When Issued | *EC |