In this paper I find that aggregate security returns are highly correlated with concurrent unexpected cash flows into mutual funds, but unrelated to concurrent expected flows. An unexpected inflow equal to 1% of total stock fund assets ($4.75 billion) corresponds to a 5.7% increase in the stock price index. Further, fund flows are correlated with the returns of the securities held by the funds, but not with the returns of other types of securities. I find evidence of a positive relation between flows and subsequent returns and evidence of a negative relation between returns and subsequent flows.

We examine underwriting fees for repeat issuers of new securities to determine the relation between loyalty to an underwriting bank and the fees charged. For a sample of offers over the 1975–2001 period, we find that loyalty is associated with lower fees for common stock offers, consistent with valuable relationship capital being built through loyalty. For debt offers, however, we find the opposite pattern, consistent with relationship capital not being as valuable. For both offer types, firms that graduate to higher-quality banks face lower fees. Firms that are more likely to be switching banks to improve analyst coverage face higher fees for common stock offers, but not for debt offers.