The CFA Society Los Angeles asks
Will the S&P 500 fall 20% or more in 2017?
This question will close as "yes" if any end-of-day closing value of the S&P 500 is at least 20% lower than the highest recorded closing value of the index in 2017 up to that date. Outcome will be determined by comparing the end-of-day closing values reported by Bloomberg ( Bloomberg).
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