The Strike and level columns cannot be modified. Any changes need to be made using the field boxes. There are many different ways to modify and change the Volatility factors. Each strike price can have an individual implied volatility entered. To modify a strike, click on the cell and enter the appropriate values. The values entered can be the actual volatility or an increment value + or - from the ATM implied volatility.
When the Relative
to ATM Vol is not turned on in the Edit menu, the values set are the actual
values used. When Relative to ATM is on, the values entered are increased
or decreased from the implied volatility set for the ATM. Strikes that
have Missing Values can been interpolated or repeated. The entered value
is either interpolated or repeated from the last strike value. Using the
missing value function can help speed up the creation of an implied volatility
table. By entering a few strategically placed Volatility entries and then
selecting to interpolate or repeat missing values, a volatility table
can be created with just a few clicks of the mouse.
