S&P 500 (SPX) Up or Down on July 20?

This market will resolve to "Up" if the official S&P 500 Index closing price for S&P 500 (SPX) on Monday, July 20, 2026 is higher than the official S&P 500 Index closing price for SPX on the most rece...

Vol 24h: $230.5K Total: $231.6K Liq: $5.2K Ends: 2026-07-20 Trade on Polymarket →
40%
Up
60%
Down
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On-chain price
40%
Up
60%
Down

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AI
AI Analysis Gemini
55%
AI estimate

Given the current date is July 20, the outcome for today's S&P 500 movement is already determined and cannot be predicted.

Edge: The market odds are irrelevant as the event has already occurred.

AI DISAGREES

The market currently favors a downside move for the S&P 500 by July 20th, presenting a potential opportunity to buy "Up" contracts if you believe the 40% probability is undervalued given historical SPX resilience or upcoming positive catalysts. Conversely, if you agree with the bearish sentiment, selling "Up" contracts or buying "Down" contracts offers a high probability trade with the current 60% market consensus.

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