The investment seeks to provide investment results that, before expenses, correspond generally to the price and yield performance of publicly traded equity securities of companies in the benchmark. (borntosell.com)
There is no assurance that the price and yield performance of the index can be fully matched. (wellsfargoadvisors.com)
The investment seeks investment results that correspond generally to the price and yield performance before fees and expenses of the NASDAQ Biotechnology Index (the underlying index). (fool.com)