This study addressed gender differences and similarities in acculturation, values, adaptation, and perceived discrimination among middle (14-17 years) and late (18-20 years) adolescents. Girls perceived less discrimination and showed better adaptation than did boys. All adolescents valued openness to change and self-transcendence similarly, but older adolescents attached greater importance to their heritage culture and conservatism. Overall, a larger gender gap in acculturation experiences emerged in late adolescence. The findings are discussed with reference to acculturative and developmental processes in a multicultural context.