Dec 2 - Welcome to the home for real-time coverage of markets brought to you by Reuters reporters. You can share your thoughts with us at markets.research@thomsonreuters.com EUROPE: A DOWN DAY AHEAD (0736 GMT)Omicron has reached the U.S. and the late sell-off seen on Wall Street overnight is set to sour the mood at the open here in Europe following yesterday"s bounce from 7-week lows. Clearly volatility is here to stay until there is more clarity on risks associated with the new virus variant. o while European stock futures are falling around 1%, U.S. indexes look set for a mild rebound later on. (Danilo Masoni)