Code to qualify IOI use.
| Code | Meaning |
|---|---|
| A | All or none |
| C | At the close |
| I | In touch with |
| L | Limit |
| M | More behind |
| O | At the open |
| P | Taking a position |
| Q | At the Market (previously called Current Quote) |
| R | Ready to trade |
| S | Portfolio show-n |
| T | Through the day |
| V | Versus |
| W | Indication - Working away |
| X | Crossing opportunity |
| Y | At the Midpoint |
| Z | Pre-open |