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

Among the largest underlying components of IXP, in trading today Sprint Nextel Corporation ( S) is off about 5.3%, and Chunghwa Telecom Company Ltd ( CHT) is lower by about 0.2%.

FORBES: Investors Call In Orders For Telecom Stocks

Among the largest underlying components of IYZ, in trading today American Tower Corporation ( NYSE: AMT) is down about 0.8%, Crown Castle International Corporation ( NYSE: CCI) is down about 0.5%, and Sprint Nextel Corporation ( NYSE: S) is up by about 2.7%.

FORBES: Noteworthy ETF Outflows: IYZ, AMT, CCI, S