We show that the disposition effect–the tendency of investors to hold losers and sell winners–can be a source of overconfidence. We find experimental evidence that individuals update beliefs about their own investment ability based on realized gains and losses rather than the overall...

Mutual funds value private security holdings at considerably different prices, update evaluations infrequently, and revise valuations dramatically at follow-on funding events. Predictable private valuation changes at follow-on rounds yield predictable fund returns, but effects are muted for...

We show that mutual funds report their junior stakes in startups at 43% higher valuation than model fair values that consider multi-tier capital structures of startups. The latest-issued and most senior security is worth 48% per share than junior securities held by mutual funds, implying that...