S&P 500 (SPX) Up or Down on August 5?

This market will resolve to "Up" if the official S&P 500 Index closing price for S&P 500 (SPX) on Wednesday, August 5, 2026 is higher than the official S&P 500 Index closing price for SPX on the most ...

Vol 24h: $78.4K Total: $91.6K Liq: $9.0K Ends: 2026-08-05 Trade on Polymarket →
76%
Up
24%
Down
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On-chain price
76%
Up
24%
Down

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AI
AI Analysis Gemini
51%
AI estimate

Given the market is currently open on August 5th, the SPX has already moved, and a slight upward bias is often observed historically, but the day's direction is highly uncertain at any given moment.

Edge: The market's 70% 'Up' probability seems overly confident for a single day's movement, suggesting a potential overestimation of bullish momentum or an underestimation of intraday volatility.

AI DISAGREES

The market is strongly pricing in an upward move for the SPX on August 5th, with a 76% probability, suggesting investors believe positive catalysts or technical support will prevail. Consider a long position if your independent analysis aligns with this high probability, but be mindful that the relatively high volume of $78,403 indicates significant betting activity, so monitor for any sudden shifts in sentiment or news that could challenge this consensus.

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