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How well do you know quants and algo trading?

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About what share of U.S. equity trading volume did high-frequency trading (HFT) firms account for around 2009?

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about 50%

By 2012, about what share of U.S. equity trading volume was attributed to high-frequency trading?

HFT's share had come down from its late-2000s peak but still made up roughly half of all U.S. stock trading.

Source: Wikipedia: Algorithmic trading (2012) en.wikipedia.org

about 80%

By 2016, about what share of foreign-exchange (forex) orders were placed by trading algorithms rather than humans?

Algorithmic trading had come to dominate currency markets by the mid-2010s, up sharply from about a quarter of orders a decade earlier.

Source: Wikipedia: Algorithmic trading (2016) en.wikipedia.org

around 92%

By 2019, about what share of all forex market trading was performed by algorithms?

By the end of the 2010s, human currency traders placed only a small fraction of forex orders directly.

Source: Wikipedia: Algorithmic trading (2019) en.wikipedia.org

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Each question asks you to guess a real number about quantitative finance ("quants") and algorithmic 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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