suggesting a Brownian motion with constant drift as a model for stock prices. An American call (resp. put) option with maturity T and strike K > 0 .. Page 18 the independence of the factors X and Y, we immediately com-. pute that. dence shows option traders participate generally in price discovery (the incorporation the equity market, and in the market for call and put options. . Page 18 .. pute the profit that the trade initiator would realize without paying the spread. type not approved by the manufacturer, or carried out by unauthorized personnel. . Compteur de stock des articles PLU ; diminution automatique pour garder.