| 5 | = | Multileg lock Lock in the context of multileg orders where legs are executed independently and the entire order is locked until matching information is available for all legs. A multileg order or quote must be matched in its entirety or not at all. For example, one of the legs may be a stock leg sent to a different execution venue that may or may not be able to fill it. | Added EP131
| | [MultilegLock] |