From time-to-time, one may experience an allocation order which is partially executed and canceled prior to being completed (i.e. market closes, contract expires, halts due to news, prices move in an unfavorable direction, etc.). In such cases, IBKR determines which customers (who were originally included in the order group and/or profile) will receive the executed shares/contracts. The methodology used by IBKR to impartially determine who receives the shares/contacts in the event of a partial fill is described in the IBKR Knowledge Base.
Please Note
- When using an Allocation Order each account gets allocated shares or contracts at the same average price.