Euro Markets: EUAs extend sideways trading, post 1.7% weekly loss but remain in channel

European carbon prices rose early on Friday, catching support from rising natural gas and a relatively strong auction outcome, before giving up most of their gains to post a 1.7% weekly loss as the market continued to move within the €68-€72 range it has occupied all week, while UK Allowances rose to a three-month high in late trading.