This study examines the relationship between stockreturns and trading volume for 10 deposit banks traded on  Borsa İstanbul. A quantile regression is usedto investigate the contemporaneous relationship between the variables, andHatemi-J (2012) test is employed to investigate the asymmetric causalitybetween the variables.  Results showthat, in most cases, the Noisy Traders Hypothesis is valid for bank stocks,meaning that investors’ buying and selling decisions about bank shares arebased not on fundamental economic analysis or indicators, but rather onprevious movements in the stock price.