You can change the number of decimal places that is used for both the underlying symbol and its options.
▪ Right-click the options matrix and choose Set decimal places.
▪ In the Set decimal places dialog, enter the number of decimal places that you want to use for both the underlying symbol and the options.
The custom decimal places set for the underlying symbol will be used for this
symbol in all documents (charts, time and sales, market depth, quick quote,
price pages etc.). You can also change this setting under Tools > Options > General > Subscription
(see Subscription Settings).
The decimal places set for the options symbols will only be used within options matrix documents.