Just when it feels like ETFs have done it all, along comes some filings that push the frontier. A trio of issuers wants to launch funds tied to prediction markets -- letting investors wager, from their brokerage accounts, on outcomes like which political party will control the White House or Congress. But how would these ETFs actually work? What else might get packaged this way? And will regulators ever sign off?

On this episode of Trillions, Eric Balchunas and Joel Weber interview Matt Hougan, CIO of Bitwise and one of the filers, about why prediction market ETFs might make sense, how they’d work, and whether this is the start of a much bigger wave of event-based ETF investing.

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With each passing year, ETFs pull in trillions of dollars while mutual funds steadily bleed assets. And yet, mutual funds still hold more money overall. Now, a long-standing wall between the two may finally be coming down. Dimensional Fund Advisors has launched the first-ever ETF share class of an existing mutual fund, a structure made possible by the expiration of Vanguard’s once-protective patent.

On this episode of Trillions, Eric Balchunas and Joel Weber speak with Joel Schneider, Dimensional’s deputy head of portfolio management for North America, and Katie Greifeld of Bloomberg News. They discuss why Dimensional volunteered to be the guinea pig, why it chose its 45-year-old US Micro Cap Portfolio (ticker: DFMC), and whether this hybrid structure could reshape how trillions of dollars are invested.

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As the US and Israel's attack of Iran has reminded the world, oil remains as integral as ever to the global economy. But the ETFs for investing in crude come with some caveats—and are a big reason why Bloomberg Intelligence introduced its traffic-light system.

On this episode of Trillions, Eric Balchunas and Joel Weber speak with Bloomberg Intelligence's James Seyffart, an ETF analyst, and Vincent Piazza, a senior energy analyst. They discuss Piazza's "delay, disruption and destruction" outlook; how the United States Oil Fund (USO) came back from the dead; and what to know about other noteworthy energy ETFs such as XLE, CRAK and even BWET.

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