Competing in the marketplace for exchange-traded funds — aka "The Terrordome" — is not for the faint of heart. It's like fighting a multi-front war where issuers have to market existing funds; engage in fee wars with the likes of Vanguard and BlackRock; and innovate in a rapidly changing industry, which now includes more than 300 firms. Only the strong thrive.

On this episode of Trillions, Eric Balchunas and Joel Weber speak with Brian Hartigan, the global head of ETFs and index investments at Invesco. The fourth-biggest ETF issuer in the US, Invesco has about $800 billion in assets under management and saw inflows of $67 billion in 2025. They discuss how the company competes against the industry's "Big Three," the secret behind QQQ's dramatic success and the surprising staying power of smart-beta ETFs. They also explore whether there are simply too many ETFs and how retail investors should assess volatile assets, like Bitcoin.

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2025 is arguably the single best year in ETF history as the industry has broken all-time records in the three primary categories: flows, launches and volume. What is behind these numbers and how long can these good times last?

On this episode of Trillions, Joel and Eric look at the year that was with Katie Greifeld, reporter and anchor at Bloomberg News and Todd Sohn, senior ETF technical strategist at Strategas Securities. The conversation also includes the boon in leveraged ETFs, option-based funds, industry consolidation and whether small caps or low volatility can ever mount a comeback.

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So far this year, some 920 exchange-traded funds have launched in the US alone—a new record. Some are already juggernauts. Others are more about capturing vibes than assets. And then there are some intriguing sleepers that remain under the radar. So, which is the best new addition to the overall investing landscape?

On this episode of Trillions, Eric Balchunas and Joel Weber welcome colleagues from Bloomberg News and Bloomberg Intelligence — Isabelle Lee, Denitsa Tsekova, Andre Yapp, Vildana Hajric, James Seyffart and Athanasios Psarofagis — to make their cases for the best new ETF of 2025. Executive Editor David Papadopolous returns to Trillions as a highly subjective judge with questionable methodology. Tickers mentioned in this episode include $MEME, $CAIE, $HUMN, $TEXN, $XDIV, $BSOL, $VBIL and $GXLC.

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You may not know the term autocallable, but you will. There’s a new type of high income ETF that tracks autocallable notes that yield 14% a year and is having instant success with flows coming in every single week since it launched in June. It’s all part of the boom in ETFs using derivatives (instead of stocks or bonds) to generate income streams.

On this episode of Trillions Joel and Eric speak with Matt Kaufman, head of ETFs at Calamos Investments, about how autocallables work and the risks and rewards of investing in ETFs that track them.

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The election of Sanae Takaichi as Japan’s first woman prime minister is putting a new spotlight on the country. Markets expect the “Iron Lady,” as she’s known, to continue some of the policies of Shinzo Abe, under whom the yen weakened while equities rocketed.

On this episode of Trillions, Eric Balchunas and Joel Weber speak with Jeremy Schwartz, chief investment officer at WisdomTree. They discuss the stellar performance of his flagship Japan Hedge Equity Fund, how Warren Buffett capitalized on Japan’s opportunities, why the country’s high debt-to-GDP ratio matters, what investors can expect from the new prime minister—and more.

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With so many assets at or near all-time highs, a rational investor might wonder how long can the good times last? And is now the time to consider an insurance policy for the inevitable pullback? And also, what sort of downside protection should you use, if any?

On this episode of Trillions, Eric Balchunas and Joel Weber speak with Bloomberg reporters Bernard Goyder and Suzanne Woolley about the spectrum of hedging strategies, many of which now involve exchange-traded funds. At one end are advanced approaches that involve the volatility index, or VIX, which can have big payoffs while also being as dangerous as juggling chainsaws. They also discuss more vanilla options such as Treasuries and gold, as well as buffer ETFs—aka “boomer candy.”

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The “American dream” has always been about money: financial progression and building wealth. But for many the concept is slipping further and further away as the country’s yawning wealth gap widens. So the question is: can you still climb the proverbial wealth ladder, or is the dream dead? And if there is still room to rise, how important is salary versus investments? How can exchange-traded funds help?

On this episode, Joe and Eric speak with Nick Maggiulli, author of the new book, The Wealth Ladder: Proven Strategies for Every Step of Your Financial Life, and chief operating officer and data scientist at Ritholtz Wealth Management. Topics discussed include how the ladder breaks, pros and cons of different strategies for climbing it and how intertwined happiness and wealth are.

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Young people are looking for an easier way to wealth than working a 9-5 job for 40 years. This has grown the appeal (and assets) of income ETFs, which can generate anywhere between 2% and 200% yield. This wide spectrum of income ETFs has seen assets balloon to $750 billion but there's more than meets the eye with many of these and investors need to understand what they are giving up.

On this episode of Trillions, Joel and Eric speak with Vildana Hajric of Bloomberg News about her Big Take story about income ETFs and how and why they are appealing to young people.

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