Julianlapoutre Joined 6/25/13 Messages 26 Points 11 12/11/13 #21 Please does someone could explain why they assume that payoff function is alway convexe whereas gamma can be negativ Thanks
Please does someone could explain why they assume that payoff function is alway convexe whereas gamma can be negativ Thanks
dstefan Baruch MFE Director Joined 5/19/06 Messages 1,339 Points 93 12/11/13 #22 The Gamma of plain vanilla options is always positive. However, convexity of payoffs as functions of strike comes from no-arbitrage principles.
The Gamma of plain vanilla options is always positive. However, convexity of payoffs as functions of strike comes from no-arbitrage principles.
Earl Chua Joined 1/17/13 Messages 6 Points 13 12/12/13 #23 dstefan said: Last Day: The book can be ordered for $25 for all orders placed before December 8 (15% discount from the $29.50 list price) fromwww.fepress.org/150iqs All the books ordered from the link above before December 8 are signed by the authors. Click to expand... Noooooo... I'm a sucker for autographed books. I should have seen this!
dstefan said: Last Day: The book can be ordered for $25 for all orders placed before December 8 (15% discount from the $29.50 list price) fromwww.fepress.org/150iqs All the books ordered from the link above before December 8 are signed by the authors. Click to expand... Noooooo... I'm a sucker for autographed books. I should have seen this!