LONDON—The dollar ticked up against its major rivals as an upbeat market mood on Monday lifted European equities and government bond yields for the first day of trading of 2022. But with London, Europe’s main FX trading center closed for a market holiday, volume was expected to remain limited. While the surge in coronavirus cases caused by the Omicron variant continued to disrupt global travel and public services, hopes were high that the economic damage of stringent lockdowns can be avoided. The dollar index, which measures the greenback against major peers, rose 0.12 percent to 95.79, while the pan-European STOXX 600 hit a new record high and U.S. stock futures pointed to a positive session on Wall Street. The Japanese yen retreated briefly to 115.36 per dollar, its lowest since the end of November but gradually climbed to 115.15. The euro slipped 0.21 percent to $1.1345, while Germany’s 10-year benchmark …