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Jan 26, 2015 at 20:58 history edited emcor CC BY-SA 3.0
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Jan 22, 2015 at 23:44 comment added emcor "it makes sense that the Vega is always positive" how does that work?^^
Jan 22, 2015 at 12:31 comment added Cooper Thank you for your answer.I am OK with that. Could you develop a bit and answer the questions please? Why the terms "long/short" and when do you employ each of them? Also by your's and Joshi's answers a call is always long in vol no matters its moneyness or I misunderstood it?
Jan 22, 2015 at 1:36 history answered SRKX CC BY-SA 3.0