| A | Class A shares |
| B | Class B shares |
| C | Temporarily exempt from NASDAQ listing requirements |
| D | A new issue of an existing stock - typically the result of a reverse split |
| E | Delinquent in SEC filing requirements per NASD rules |
| F | Foreign (non-USA) stock |
| G | First convertible bond |
| H | Second convertible bond |
| I | Third convertible bond |
| J | Voting shares |
| K | Non-voting shares |
| L | Miscellaneous situations, including foreign preferred, preferred when-issued, second class units, third class warrants, or sixth class preferred stock |
| M | Fourth class preferred stock |
| N | Third class preferred stock |
| O | Second class preferred stock |
| P | First class preferred stock |
| Q | Currently in bankruptcy proceedings |
| R | Rights |
| S | Beneficial interest |
| T | With warrants or rights |
| U | Units |
| V | When-issued and when-distributed |
| W | Warrants |
| X | Indicates shares in a Mutual Fund |
| Y | ADR's - American Depositary Receipts |
| Z | Miscellaneous situations, including second class of warrants, fifth class preferred stock or any unit, receipt or certificate representing a limited partnership interest |
