QDEF

The underlying index is designed to reflect the performance of a selection of companies that, in aggregate, possess greater financial strength and stability characteristics relative to the Northern Trust 1250 Index, a float-adjusted market-capitalization weighted index of U. S. domiciled large- and mid-capitalization companies. The fund will invest at least 80% of its total assets (exclusive of collateral held from securities lending) in the securities of the underlying index.