Acceso usuarios
Serkan İmişiker, Rasim Özcan, Bedri Kamil Onur Taş
In this study, we investigate two main research questions using unique individual trade level data from the Istanbul Stock Exchange (ISE; renamed Borsa Istanbul in January 2013): (1) Do brokers conduct manipulative trades in the ISE? (2) Do these brokers gain returns from their manipulative behavior? We examine the trade-based “pump-and-dump” price manipulation scheme. Using the complete intraday trading history of stocks listed on the ISE over the 2003–6 period, we find that a significant percent of the trades conducted by brokers can be identified as consistent with the pump-and-dump price manipulation scheme, and brokers that conduct more pump-and-dump trades earn marginally higher profits.
