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How well do you know options trading?

Guess the real numbers behind options trading, see how everyone else guessed, and get the source.

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In Cboe's 2025 revenue mix, about what share came from North American equities trading?

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Option by the numbers

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options on indexes and individual stocks, 52% of revenue

In Cboe's 2025 revenue mix, what was the largest single category?

Options trading remains Cboe's core business by far.

Source: Wikipedia - Chicago Board Options Exchange (2025) en.wikipedia.org

BATS Global Markets, about $3.2 billion

In 2017, Cboe made a major acquisition of a rival exchange operator for about how much?

The deal significantly expanded Cboe's footprint in equities and ETF trading.

Source: Wikipedia - Chicago Board Options Exchange (2017) en.wikipedia.org

$460 million writedown

Cboe's 2022 acquisition of the crypto exchange ErisX later resulted in a writedown of about how much?

The writedown reflected a cooling crypto market after the acquisition closed.

Source: Wikipedia - Chicago Board Options Exchange (2022) en.wikipedia.org

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Each question asks you to guess a real number about stock options trading. After you answer you see how everyone else guessed, then the real figure and where it comes from.

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Four stats and one opinion poll. A correct guess earns 100 points plus up to 50 for speed, with a combo bonus for answers in a row. The range next to the right answer earns 40. Opinion polls earn 25 for having your say, and nailing every stat adds 150.

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