This refers to a conditional order to either buy or sell a large amount of assets. This is done through smaller, pre-determined limit orders using an automated program. What this does is hide the actual order quantity.
1.1 Placing an Iceberg Order is performed through the following steps:
1.2 Configuring the Iceberg Order parameters
1.3 From the trader’s platform of choice, he or she should select the Iceberg Order configuration
1.4 Configure routing through the Routing Configuration dialog
1.5 The trader then sets the goal quantity
1.6 Afterward, click the Buy and Sell function at the price level where a trader can submit the sliced order