Side of order
| Code | Meaning |
|---|---|
| 1 | Buy |
| 2 | Sell |
| 3 | Buy minus |
| 4 | Sell plus |
| 5 | Sell short |
| 6 | Sell short exempt |
| 7 | Undisclosed (valid for IOI and List Order messages only) |
| 8 | Cross (orders where counterparty is an exchange, valid for all messages except IOIs) |
| 9 | Cross short |