Using an original dataset from the Vietnamese catfish sector, I analyze the impact of vertical coordination options, namely, contract farming and vertical integration, on farm performance, which is measured in terms of yields and revenue per hectare. The effects of vertical coordination are estimated using a maximum simulated likelihood estimator and a two‐stage least square regression with instrumental variables to account for endogenous farm and household characteristics and selection on unobservable characteristics. The results show that vertically integrated farms have substantially higher yields and revenue per hectare than nonintegrated farms. The levels of gains that can be attributed to integration are large and consistent under different estimation procedures, and there is no difference between nonintegrated and contract farms in terms of farm performance.