The Spiders brand includes eleven different ETFs.  The most important of these is one of the three leading funds in the market.  It tracks the S&P 500.  This fund is generally called by its brand name, Spiders, rather than its proper name.  Shares of Spiders are traded at the AMEX under the ticker symbol SPY.

The Spiders brand includes 10 other funds.

• The MidCap Spiders tracks the S&P MidCap 400. Its symbol is IJJ and is also listed at the AMEX.
• 9 additional sector funds are based on the S&P 500. The 500 corporations included in the S&P 500 are divided into nine business sectors. For each sector there is a fund which invests in those companies. These are called Select Sector Spiders.

As of February 2008, SPY Market Cap was around $94 Billion.

Table 20 lists these sector funds.

Table 20- SPDRs sectors funds