School-level strategy enabled by neoliberal choice policies can produce internal curricular markets whereby branded curricula such as the International Baccalaureate are offered alongside the local government curriculum in the same school. This project investigated how such curricular markets operating in Australian schools impacted on teachers' work. This article reports on teachers work in three case study schools that offered both the International Baccalaureate Diploma (IBD) program and the local senior schooling curriculum, then draws on an online survey of 225 teachers in 26 such schools across Australia. The analysis reveals the impact of curricular markets along two dimensions: the curriculum's internal design, and the relational aspects of how schools manage to deliver tandem offerings within institutional constraints. Teachers working in the IBD program were shown to relish its design, despite additional demands, while teachers working in just the local curriculum reported more relational issues. The article argues that these trends suggest that there are winners and losers emerging in the work conditions produced by curricular markets.