Vanguard Information Technology Index Fund Admiral Shares 

This low-cost index fund offers exposure to the information technology sector of the U.S. equity market, which includes stocks of companies that serve the electronics and computer industries or that manufacture products based on the latest applied science. The fund’s main risk is its narrow scope—it invests solely in information technology stocks. An investor should expect high volatility from the fund, which should be considered only as a small portion of an already well-diversified portfolio.