An order that contains a number of exchange or deposit items that must be completed simultaneously, or not at all. Package deals allow traders to ensure specific prices or times to maturity for multiple assets.
Taobiz explains Package Deal
A trader may want to participate in a package deal to properly execute an investment strategy. For example, let's say an investor wants to enter into a long-short strategy, where he or she purchases one stock and short sells another. Making this order a package deal will protect the investor in case either stock is not immediately available for purchase or sale. The investor may not want the exposure of being only long or short for the period of time required to complete the second transaction.
