S&P 500 (SPX) Up or Down on July 13?

This market will resolve to "Up" if the official S&P 500 Index closing price for S&P 500 (SPX) on Monday, July 13, 2026 is higher than the official S&P 500 Index closing price for SPX on the most rece...

Vol 24h: $179.2K Total: $180.2K Liq: $14.3K Ends: 2026-07-13 Trade on Polymarket →
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AI estimate

Given the market is for July 13th and today's date is July 13th, the outcome is already determined, making any prediction a guess without real-time data.

Edge: The market odds are extremely skewed (2% Up, 98% Down) for an event that has already occurred or is occurring, suggesting a potential mispricing or a very specific context not provided; without real-time data, a 50/50 split is more appropriate as the outcome is fixed but unknown to the model.

AI DISAGREES

This market presents a high-risk, high-reward opportunity for investors believing the S&P 500 will rise, as the 2% "Up" odds imply a massive payout if correct, but the extremely low probability suggests significant downside risk. Given the overwhelming "Down" probability and substantial volume, shorting the "Up" position or simply observing for potential mispricing (though unlikely at these odds) could be considered, but generally, this market indicates strong sentiment for a decline, making betting against it a contrarian and speculative move.

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