<t>Yes, I do mean 2004. My values for d1 and d2 differ from yours, I maked1 = -0.07198d2 = -0.11591However, as d1-d2 = Vol * sqrt(t) then using your values of d1 and d2 implies Vol = 15.57%, whereas using my values for d1 and d2 implies Vol = 15.32%.So at least I'm consistent with my input vol data,...