Defines the type of contingency.
| Code | Meaning |
|---|---|
| 1 | One Cancels the Other (OCO) |
| 2 | One Triggers the Other (OTO) |
| 3 | One Updates the Other (OUO) - Absolute Quantity Reduction |
| 4 | One Updates the Other (OUO) - Proportional Quantity Reduction |
| 5 | Bid and Offer |
| 6 | Bid and Offer OCO |