ETFs are funds that are divided into shares and traded on an exchange just like ordinary shares. Their pricing is also updated throughout the day. The Assets within an ETF are usually related such as Equity ETFs, Bond ETFs and Currency ETFs. An example would be one of the many ETFs that track the ASX 200. This means the ETF will hold the companies that make up the ASX 200. This fund will aim to closely track the performance of this Index.