The creation story of the first exchange-traded fund is actually the best way to understand how they work. And it's not just educational, it's entertaining. Like the PC and the MP3, the story of the creation of SPY -- which turned 30 this year -- is full of characters, twists and turns, and subplots. In the end, the product launched an industry that's reshaping not just investing but the entire financial ecosystem. This six-episode miniseries will weave together interviews with the founding fathers and other key players that help investors better understand the ETF and how we got here.

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Exactly 31 years ago today, the stock market fell 23 percent, the worst day ever for stocks two times over. It was in the aftermath of that crash that the idea for exchange-traded funds was born. And it came from a very unlikely place: the U.S. Securities and Exchange Commission.

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Government reports are known more for curing insomnia than providing inspiration for revolutionary products. The October 1987 Market Break Report might be an exception. A paragraph deep in the SEC's 800-page white paper happened to outline a “product” for trading baskets of stocks. On this episode of “The ETF Story,” you'll learn how those words gave Nate Most and Steve Bloom the idea for what would become the exchange-traded fund. You'll also hear from Vanguard founder John Bogle, who passed on Most's pitch -- and who may have shaped the ETF in the process.

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