Chesney, Marc; Crameri, Remo; Mancini, Loriano - Institut für Schweizerisches Bankwesen <Zürich> - 2009
This paper presents a new method to detect informed trading activities in the options markets.An option trade is identified as informed when it is characterized by an unusual largeincrement in open interest and volume, induces large gains, and is not hedged in the stock market.For the period...