It's taken about two decades for the wider investment public to understand ETFs: The index funds that allow you to buy anything from the ASX 200 to the S&P 500 are now very popular. But just as the message on passive investing broke through, the sector has turned the idea upside down by going head-to-head with active managers. It's time to figure out what's going on.

Marc Jocum of GlobalX joins wealth editor James Kirby in this episode 

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In today's show, we cover:

• Getting to know traditional ETFs
• The pros and cons of new-style active ETFs 
• Geared ETFs - How do they work? 
•  Using ETFs for unlisted assets