What is an Exchange Traded Option (ETO)?
An Exchange Traded Option (ETO) is a listed derivative product traded on the Australian Securities Exchange (ASX). It provides the holder with the right, but not the obligation, to buy or sell an underlying security such as an Australian share, ETF, or market index at a predetermined price (known as the exercise or strike price) on or before a specified expiry date.
All ETOs traded on the ASX are standardised contracts, with key terms such as contract size, expiry date, and strike price set by the exchange. Equity ETOs typically represent 100 shares per contract, meaning price movements can have a magnified impact compared to direct share ownership.
Types of Exchange Traded Options
The ASX offers two main types of ETOs:
Call options
Provide the right to buy the underlying security at the strike price.Put options
Provide the right to sell the underlying security at the strike price.
Most equity options on the ASX are American‑style, meaning they may be exercised at any time up to expiry. Index options are generally European‑style and can only be exercised on the expiry date.
How are ETOs cleared and settled?
ETOs are cleared through ASX Clear, which acts as the central counterparty to every trade. ASX Clear manages:
Margin requirements
Default risk
Contract settlement
This structure helps ensure market integrity and reduces counterparty risk for participants.
Common ETO uses
According to the ASX, ETOs are commonly used for:
Leverage with lower upfront capital
Income strategies
Portfolio protection and hedging
Strategic trading opportunities across different market conditions
Important Risk Disclosure – Exchange Traded Options
Exchange Traded Options (ETOs) are complex financial products and carry a higher level of risk than direct share investments. They are generally suitable only for investors who have a thorough understanding of derivatives and the associated risks.
Key risks include, but are not limited to:
Leverage risk
Small movements in the price of the underlying security can result in disproportionately large gains or losses.Time decay
Options lose value as they approach expiry and may expire worthless, resulting in the loss of the entire investment.Exercise and assignment risk
Certain options may be exercised early, particularly around dividend dates.Market and liquidity risk
Market conditions may affect an investor’s ability to exit a position at a desirable price.
The information provided is general in nature and does not take into account personal financial circumstances, objectives, or needs. Investors should ensure they understand the relevant ASX rules and consider seeking independent professional advice before trading Exchange Traded Options.