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Cboe revives S&P 500 binary options, chasing a market popularized by Polymarket, Kalshi

One of the largest U.S. derivatives exchanges is bringing back yes/no bets on the S&P 500 after pulling them a decade ago, moving onto turf that Polymarket and Kalshi turned into one of the internet's fastest-growing cor...

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Market signal

Archive context

Older archive item. Useful for background and entity history, but not a fresh market-moving signal.

Cboe revives S&P 500 binary options, chasing a market popularized by Polymarket, Kalshi
One of the largest U.S. derivatives exchanges is bringing back yes/no bets on the S&P 500 after pulling them a decade ago, moving onto turf that Polymarket and Kalshi turned into one of the internet's fastest-growing corners.

Why this matters

Kalshi is showing up inside the Market Structure theme, so this story is worth tracking for follow-through rather than treating it as a one-off headline.

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