Use the following information for questions 18 & 19.
Bank of America (BofA) is currently selling for $30.20 and the risk-free rate is 2.75% per annum with continuous compounding for all horizons up to 9 months. BofA stock has a volatility of 30%.
The answers are C for both. Can you please show the work for these questions?
1.
Option C
We know that in Cox, Ross and Rubinstein approach, pu=(exp(rt)-exp(-vol*sqrt(t)))/(exp(vol*sqrt(t))-exp(-vol*sqrt(t)))
As it is a three step binomial tree so each step is 1/6*6=1 month=1/12 years
=(exp(2.75%*1/12)-exp(-30%*sqrt(1/12)))/(exp(30%*sqrt(1/12))-exp(-30%*sqrt(1/12)))
=0.4916
2.
Option C
We know that in Cox, Ross and Rubinstein approach,
u=exp(volatility*sqrt(t))
As it is a three step binomial tree so each step is 1/3*3=1 month=1/12 years
u=exp(30%*sqrt(1/12))
=1.090463178
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