Stock Price ($)S100
Strike Price ($)K100
Volatilityσ0.3
Time to expiration (year)T1
continuous compounding rate r0.1
the number of periods n3dt = T/n =0.3333
upward movement u 1.1891exp(σ*dt^0.5)
downward movement d0.84101/u
risk-neutral probability p0.5542(exp(rdt)-d)/(u-d) Outputs
68.1381
44.676618.9110
28.317510.13630.0000
American call option17.5210 5.43300.00000.0000
time period0123
Interim Calculations
168.1381
141.3982118.9110
118.9110100.000084.0965 Stock lattice100.000084.096570.722259.4749 time period0123