This article shows that mutual funds’ trading experiences bias their future repurchasing decisions. Mutual funds are less likely to repurchase a stock if they previously sold the stock for a loss rather than for a gain. After switching to managing a different fund, fund managers still avoid repurchasing stocks they sold for a loss at a past fund. We do not find that mutual fund managers are biased against repurchasing past loser stocks because of superior information. Though less likely to be repurchased, repurchased losers do not underperform repurchased winners—and the fund itself—in the subsequent quarter.

Anecdotal and indirect empirical evidence suggest that excitement and market bubbles are intertwined, such that excitement not only arises during bubbles but may also help fuel them. We directly test the impact of excitement on bubbles in a bubble-prone experimental asset-pricing market ( Capinalp, Porter, and Smith, 2001 ). Prior to trading, participants are assigned to emotion inductions through video clips The results of fifty-five markets show larger asset pricing bubbles in magnitude and amplitude in the excitement treatment relative to a treatment of same valence and lower intensity ( calm ) and a treatment of similar intensity and opposite valence ( fear ).