By Huw Jones LONDON (Reuters) - Markets are coping well with uncertainty over Greece's future in the euro zone, with little sign so far of contagion that would undermine wider European Union financial stability, the bloc's banking regulator said on Wednesday. Euro zone members have given Greece until the end of the week to come up with a proposal for sweeping reforms in return for loans that will keep the country from crashing out of the euro. "What we are seeing is a rather ordered reaction among investors and the pressure on equity of banks is rather limited but cautious monitoring and vigilance remain key," a European Banking Authority (EBA) spokesman said in response to questions from Reuters.