I hope I've understood your question but here goes anyway.
TOXO is a listed company option. This is where a company issues options for the purchase of Fully Paid Ordinary shares. The purchaser of the option has the right to exercise the option at a set price on or before a specified date, in order to then own an FPO. These types of options are usually listed and are to be found on the ASX site under the Shares section.
Exchange Traded Options (ETOs) are a different animal altogether. They are a levarage product that comes in all sorts of flavours and colours. Generally they are not something to be played with by the uninitiated.
If you are in the ASX website in the Options section and type in TOXO, you will be told that the option doesn't exist. If however you type it in while either on the Home page or in the Shares section, you will get details for the TOX option.
