Why do retail investors trade? To analyze the impact of professional advice on trading, we combine administrative and survey data from a large German bank. Investors who report that they always rely on their advisor's recommendations have a 25-percent-higher trading volume. Also, for investors...

We relate Google search volumes, proxying for economic concerns of households (FEARS), to individual investor trading. The trading data come from a large German brokerage covering more than 100 thousand investors over ten years. When FEARS is high, individual investors are on the sell side of...

We use a comprehensive dataset from a German discount brokerage firm to investigate both the prevalence and effects of moving average trading heuristics among individual investors. We document an abnormal increase of 30% in individuals' trading volume on signal days. More than one in 10...