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It is fair to say the attendees of the carnival-like conference just outside Miami took little note of McNabb’s consternation. Investors have in recent years been able to buy niche, “thematic” ETFs that purport to benefit from—deep breath—the global obesity epidemic; online gaming; the rise of millennials; the whiskey industry; robotics; artificial intelligence; clean energy; solar energy; autonomous driving; uranium mining; better female board representation; cloud computing; genomics technology; social media; marijuana farming; toll roads in the developing world; water purification; reverse-weighted US stocks; health and fitness; organic food; elderly care; lithium batteries; drones; and cybersecurity. There was even briefly an ETF that invested in the stocks of companies exposed to the ETF industry. Some of these more experimental funds gain traction, but many languish and are eventually liquidated, the money recycled into the latest hot fad.
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Robin Wigglesworth (Trillions: How a Band of Wall Street Renegades Invented the Index Fund and Changed Finance Forever)