When a trading application on a client terminal receives a trade order, a randomizer application may automatically randomize one or more order parameters to generate a randomized order. For example, an order quantity, a price level, and/or a time period between sending any two consecutive orders may be randomized. In another example, in a thin market randomized order quantities may be decreased and in a heavy market randomized order quantities may be increased. The randomized order is then automatically placed on the market.