(Telecompaper) Year-to-date, the TPSI European Telecoms is up 0.6 percent, lagging the EuroStoxx 50's gain of 5.7 percent. The heavy-weights Vodafone (-9.2%) and Deutsche Telekom (-4.1%) put a strain on the sector. The biggest winners include Turk Telekom (+28%) and Turkcell (+20%), as well as Liberty Global (+16%). Several German shares are performing particularly badly, such as United Internet (-10%), Telefonica Deutschland (-11%), Tele Columbus (-17%) and Drillisch (-18%). Iliad (-20%) is the weakest share in our index.