No Picture
NASDAQ-100

PowerShares QQQ — Formerly NASDAQ-100




The NASDAQ-100 is a stock market index of 100 of the largest domestic and international non-financial companies listed on the NASDAQ stock exchange. The NASDAQ-100 is a modified market value-weighted index; the companies weight in the index are based on their market capitalization, with certain rules capping the influence of the largest components. […]

No Picture
S&P 500

S&P 500

The S&P 500 is a value weighted index published since 1957 of the prices of 500 large cap common stocks actively traded in the United States. The stocks included in the S&P 500 are those of large publicly held companies that trade on either of the two largest American stock markets, the New York Stock Exchange and NASDAQ. Almost all of the stocks included in the index are among the 500 American stocks with the largest market capitalizations. […]