In a fast-moving equity market, an asset manager must execute a large order of 50,000 shares of XYZ Inc. The manager is concerned about the market impact of this order and does not want to drive the price up significantly when executing the trade. They are evaluating different order types to minimize this impact.
The manager considers using the following order types:
Given the manager's objective of reducing market impact while executing the trade, which order type would be the most suitable choice?