By Alden Bentley, Harry Robertson and Wayne Cole NEW YORK/LONDON/SYDNEY (Reuters) -Wall Street struggled for traction on Monday, ending mixed after slumping last week, while German election results buoyed German shares and Europe's single currency as investors waited for midweek results from artificial intelligence chip leader Nvidia.

Germany faces its second change of leader in less than four years after the head of the center-right opposition won Sunday’s election.

On 23 February, Germany will vote to decide who will run their next federal government. There’s five candidates running to be chancellor – the frontrunner is Friedrich Mertz from the Christian Democrat party. In Germany, a single party rarely wins the majority of seats in the Bundestag, meaning coalition governments often form.