The file HW2Bdata.xlsx contains the prices of options on Starbucks stock. These prices are from October 1, 2019. The expiration date of all these
The file HW2Bdata.xlsx contains the prices of options on Starbucks stock. These prices are from October 1, 2019. The expiration date of all these options is November 15, 2019. (T = 6 weeks) The 6-week risk free rate was 1.89% (annualized). Starbucks stock price was $86.78 on October 1, 2019. Use the standard Black-Scholes Model: C=S[N(d1)] - XeT [N(d2)] -T P = Xe-f [1 N(d2)] S [1 N(d1)] d = - In ()+(+2) T d = d-0T 1. Report implied volatilities of the put with strike price = $90. 2. Plot the implied volatility versus the strike price for the call options. Is this consistent with the Black-Scholes equation? File Home Insert Page Layout Formulas Data Review View Help X Arial 10 AA = Paste BIU Clipboard Font Alignment A2 X fx Expiration Date A B D E F G 1 Data on 10/1/2019 2 Expiration Date Strike Price Call Option Put Option 3 11/15/2019 80 8.77 1.12 4 11/15/2019 82.5 6.74 1.7 5 11/15/2019 85 5 2.46 6 11/15/2019 87.5 3.22 3.47 7 11/15/2019 90 2.06 4.8 8 11/15/2019 92.5 1.18 6.44 9 11/15/2019 95 0.64 8.55 10 11/15/2019 97.5 0.33 10.49 11 11/15/2019 100 0.15 12.61 12 13 14 15 Paste Clipboard K Times New Roman BIU Font 11 ' = = A F Alignment K General x $ % 9 58--08 Number Conditional Formatting Format as Table Cell Styles Styles D13 fx A B C 2 Parameters 3 Risk-free Rate 1.89% 4 Time to Maturity 0.1154 5 Current Stock Price $ 86.78 6 Striking Price $ 90.00 7 Volatility 20.24% 8 Calculation 9 dl (0.4638) d2 (0.5326) 10 N(dl) 32.14% N(d2) 29.72% 11 12 Black Scholes Call Value $ 1.20 13 Black Scholes Put Value $ 4.23 implied volatility D M M Insert > Delete * Format Cells E
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