Brazilian markets took a battering Monday following the shock reelection of leftist President Luiz Inacio Lula da Silva, but elsewhere investors were focused on artificial intelligence (AI) technology companies. Lula came from behind to win in the second-round vote, but his right-wing challenger Flavio Bolsonaro, the son of jailed ex-leader Jair Bolsonaro, has vowed to challenge the result. Brazilian markets reeled as trading got under way, but pared some of the steepest losses by the close.