Changing the Mode of Display for a Volatility Surface

You can display the volatility surface in a number of different ways as follows, depending on how you prefer to trade options:

% change of forward

This is the default mode of display when you first open the page.

For each % change of forward SDX Commodities & Energy displays the implied volatility and strike.

Delta

For each delta SDX Commodities & Energy displays the implied volatility and strike. The deltas on the left-hand side of the ATMF vol are the deltas of the puts; the deltas on the right-hand side of the ATMF vol are the deltas of the calls.

Exchange strikes

The exchange strikes for European and American option types are displayed separately.

For each exchange strike SDX Commodities & Energy displays the:

Mid implied volatility.

Market premium of the call option and of the put option, each as a price per unit. The prices are displayed in the commodity’s default base currency.

To change the mode of display:

In the Volatility Surface page, click the % change of forward dropdown list and select the mode of display you require. The volatility surface is displayed according to the mode selected.