This paper considers the roles of migration and group-specific ethnic penalties in minority groups’ life chances. In relation to existing knowledge of extensive diversity between ethnic groups, and outlining a range of frameworks within which to understand that diversity, the paper first explores the relationship of class origins to parental educational and economic assets for three groups of migrant parentage and a comparison white non-migrant group. Second, the paper investigates for the different ethnic groups how the probability of having a professional or managerial class outcome is influenced by class origins and by the educational achievements of the “second generation”. Analysis is based on the ONS Longitudinal Study, which enables the study members to be tracked from 1971, when they were children living with their parents, to their own social class outcomes in 1991 and 2001. Because processes of occupational achievement may take different lengths of time for different groups, occupational outcomes are modelled in both 1991 and 2001, and also outcomes in 2001 conditional on position in 1991. The paper shows that there is evidence of differential processes operating for different ethnic groups that go beyond their class background, but which cannot be attributed to discrimination operating equally against all minority groups.