Individual investor trading results in systematic and economically large losses. Using a complete trading history of all investors in Taiwan, we document that the aggregate portfolio of individuals suffers an annual performance penalty of 3.8 percentage points. Individual investor losses are...

We document economically large cross-sectional differences in the before- and after-fee returns earned by speculative traders. We establish this result by focusing on day traders in Taiwan from 1992 to 2006. We argue that these traders are almost certainly speculative traders given their short...

We analyze Taiwan's IPO auctions to shed light on the diminishing role of auctions in IPO markets. In contrast to Ljungqvist and Wilhelm's (2002) results for bookbuilding IPOs, we find that underpricing increases with institutional allocation in auctions. This implies that issuing firms in...

"We ask whether the typical investor and the aggregate investor exhibit a bias known as the disposition effect, the tendency to sell investments that are held for a profit at a faster rate than investments held for a loss. We analyse all trading activity on the Taiwan Stock Exchange (TSE) for...

Hedging the risk of holding undesired inventory is very important for market makers. However, prior studies seldom capture the role of inventory positions in measuring hedging costs. This study measures hedging costs directly using data on inventory positions of market makers in the Taiwan Index...