Commodity

Stock price

Strike price (K)

Volatility (σ)

Price of 1-year maturity

Price of 3-year maturity

Silver

158.16

138.16

26.04%

7.86

8.30

Oil

111.07

91.07

28.95%

11.94

8.51

Gold

137.56

117.56

13.78%

9.60

8.01