Well-known market anomalies are largely absent among the biggest stocks
A scan of a million brokerage accounts finds the wealthy trade ahead of market-moving news
Avanidhar Subrahmanyam studies how some investors’ gambling mentality affects share prices
Studying Chinese A and B shares reveals investor uncertainty
Research measures the impact of global economic factors on returns
Investors in leveraged companies take on extra risk, but research indicates they see no offsetting return
The market penalizes customers’ shares more than those of the polluter