R 中的定量风险管理
Alexander McNeil
Instructor
K <- 50 T <- 2 t <- 0 S <- 40 r <- 0.005 sigma <- 0.25 Black_Scholes(t, S, r, sigma, K, T, "call")
K <- 50
T <- 2
t <- 0
S <- 40
r <- 0.005
sigma <- 0.25
Black_Scholes(t, S, r, sigma, K, T, "call")
2.619183
Black_Scholes(t, S, r, sigma*1.2, K, T, "call")
3.677901
plot(VIX)