How to calculate implied volatility with excel

First we go and acquire de data.
On S we put the place for the stock or index or whatever we search for. In this case for example the price of S&P 500 it was 3009.05 today.
Then we select a1 month option with price close to ours, for example 3010
After that we select the interest rate for our risk free .
Finally we have to search for a sigma that makes our observed price igual t the black scholes option price.
When we finish with all then we can calculate the deviation and see how much it can go down and up our stock.
Last updated
Was this helpful?