S&P 500 (SPX) Up or Down on July 21?
A near-lock at 98%; conviction's spiking.
What it resolves on
This market will resolve to "Up" if the official S&P 500 Index closing price for S&P 500 (SPX) on Tuesday, July 21, 2026 is higher than the official S&P 500 Index closing price for SPX on the most recent prior trading day. This market will resolve to "Down" if the official S&P 500 Index closing price for S&P 500 (SPX) on Tuesday, July 21, 2026 is lower than the official S&P 500 Index closing price for SPX on the most recent prior trading day. E.g., ordinarily, a market on Monday would refer to the previous Friday for its most recent closing price, unless that Friday were a market holiday, in which case it would refer to Thursday, or the next most recent trading day.
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