For black scholes valuation of the option i am using
Time = 0.5 years
Strike = 0.2
Current Stock Price = 0.14
Risk Free Rate = 0.05
Now if i take historical standard deviations of different methods and measures i am only getting a range from about 0.06 to 0.1
When using this range im getting an option price of next to zero
Hoever when using a volatility of of say 150% im getting an option price of 0.04313 which is close to the current price of around 4.6
Can some one advise as to why i need such a high volatility in order to achieve a reasonable result. 150%???? isnt that a bit extreme
VIPHAR
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