Barber, Brad M.; Odean, Terrance; Zhu, Ning - In: Journal of Financial Markets 12 (2009) 4, pp. 547-569
We analyze trading records for 66,465 households at a large discount broker and 665,533 investors at a large retail broker to document that the trading of individuals is highly correlated and persistent. This systematic trading of individual investors is not primarily driven by passive reactions...