The fund normally invests at least 80% of assets in securities of companies principally engaged in the design and construction of residential, commercial, industrial, and public works facilities, as well as companies engaged in the manufacture, supply, distribution, or sale of construction and housing products or services. It invests in domestic and foreign issuers. The fund uses fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions to select investments. It invests primarily in common stocks. The fund is non-diversified.