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Apr 30, 2026 4:00 AM

Will S&P 500 Open Up Or Down On April 30? Here's How Polymarket Traders Lean As Trump's Naval Blockade Sends Brent Crude Near $115

The S&P 500 closed lower on Wednesday, slipping to 7,135.95 as investors balanced a pivotal day of megacap tech earnings against an escalating geopolitical standoff and the Federal Reserve’s decision on interest rates.

The Polygon-based (CRYPTO: POL) Polymarket crowd is slightly bearish heading into Thursday’s open. The April 30 market shows a 47% chance of an “Up” open. Early trading volume for the Thursday bet currently sits at $26,434.

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Oil Surges 6%, S&P 500 Wobbles Before Fed And Tech Earnings: Stock Market Today

Why That Number Matters

Energy markets are in overdrive after President Donald Trump doubled down on a U.S. naval blockade against Iran. Trump said that the blockade will remain in place until Tehran agrees to a nuclear deal, asserting that the ...