We use a dataset from a large retail bank to examine the impact of financial advice on investors’ stock trading performance and behavioral biases. Our data allow us to classify each individual trade as either advised or independent and to compare them in a trade-by-trade within-person analysis. Thus, our study is not plagued by the endogeneity problems typically faced by studies on financial advice. We document that advisors hurt trading performance. However, they help to reduce some of the behavioral biases retail investors are subject to, but this does not overcompensate the negative performance effects of the bad stock recommendations.