Euro Markets: EUAs tumble to post 2.1% monthly drop amid aggressive long-squeeze as energy weakens

European carbon prices ended the month of June with a drop of 2% but rounded off the second quarter with a 1.5% gain, even after prices tumbled 2.8% on Monday amid aggressive selling that took many sources by surprise, driving prices below several technical support levels as long positions were stopped out, while UKAs recorded their biggest monthly drop since September.