Among the largest underlying components of IYZ, in trading today CenturyLink Incorporated ( CTL) is down about 0.05%, and American Tower Corporation ( AMT) is higher by about 0.4%.

FORBES: Investors Pick Up The Phone: Sell, Sell, Sell

Among the largest underlying components of IYZ, in trading today American Tower Corporation ( AMT) is down about 0.2%, and Sprint Nextel Corporation ( S) is up by about 0.6%.

FORBES: Telecom Investors Calling the Top

According to the ETF Finder at ETF Channel, WIN makes up 4.87% of the iShares Dow Jones U.S. Telecommunications Sector Index Fund ETF ( AMEX: IYZ )which is trading lower by about 0.6% on the day Monday.

FORBES: Notable Two Hundred Day Moving Average Cross - WIN