DIA launched trading on January 20, 1998 with approximately $39 million in assets. During the first year of trading, DIA had an average of 600,000 shares traded per day. As of December 31, 2007, DIA had over $8.8 billion in assets and trades, on average, approximately 13 million shares per day.

DIAMONDS represent ownership in the DIAMONDS, Trust Series 1, a unit investment trust established to accumulate and hold a portfolio of the equity securities that comprise the Dow Jones Industrial Average. DIAMONDS seek investment results that, before expenses, generally correspond to the price and yield performance of the DJIA.

"The American Stock Exchange takes great pride in joining State Street and Dow Jones Indexes in celebrating 10 years of trading in DIAMONDS," said Scott Ebner, Senior Vice President of the Amex's ETF marketplace. "Tracking the oldest and most widely recognized stock market index, DIA has experienced tremendous growth in assets and trading volume since its inception in 1998."