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May 11, 2026 4:00 AM

Will S&P 500 Open Up Or Down On May 11? Here's How Polymarket Traders Lean As Trump Rejects Iran Peace Proposal And Oil Surges

The S&P 500 heads into Monday’s session facing a fresh wave of geopolitical pressure, with S&P 500 futures slipping 0.09% early on Monday. After digesting Friday’s jobs data and market action, investor confidence has been rattled by a total breakdown in weekend diplomatic talks.

The Polygon-based (CRYPTO: POL) Polymarket crowd is leaning decisively bearish for the Monday open. The “S&P 500 Opens Up or Down on May 11?” market currently reflects a 38% chance of an “Up” open, plunging 12% following the weekend’s diplomatic breakdown. Early trading volume for the Monday bet currently sits at $13,977.

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