According to the ETF Finder at ETF Channel, ADTN makes up 2.63% of the Dynamic Networking Portfolio ETF ( AMEX: PXQ )which is trading higher by about 0.3% on the day Friday.
In fact, the PowerShares Dynamic Networking (PXQ) exchange-traded fund (ETF) has surged 35% since the start of the year, versus CSCO's 15.8% decline for the same period, indicating that the networking sector is doing just fine without the blue chip's help.