Stock Market: Will S&P 500 Open Up or Down Today?

by | Oct 13, 2026 | General

U.S. stock futures were mixed early Tuesday, with Nasdaq 100 and S&P 500 futures lower while Dow futures gained as Wall Street prepares for the official start of third-quarter bank earnings while navigating political controversies over proposed dividend payments and unconventional energy deals.

According to the Oct. 13 contract on Polymarket, a Polygon (CRYPTO: POL) based prediction platform, the crowd is leaning bearish. The “S&P 500 (SPX) Up or Down on October 13?” contract currently reflects a 37% chance of a higher open.

Oct 13 Polymarket Odds For S&P 500 Opening

Why That Number Matters

Traders are balancing weakness in semiconductor futures against a highly anticipated earnings slate and geopolitical maneuvers:

  • Mixed Index Futures: Equity futures show a divergence between tech and blue-chip benchmarks. Nasdaq 100 futures dropped 0.81%, and S&P 500 futures fell 0.23%. Conversely, Dow Jones futures rose 0.23% and Russell 2000 futures ticked up 0.12%.
  • Big Bank Earnings: Third-quarter earnings season begins in earnest Tuesday. As shown in “Earnings today 13.10.26.png”, the docket is headlined by JPMorgan Chase & Co. (NYSE: JPM, alongside Goldman Sachs Group Inc. (NYSE: GS), Wells Fargo & Company (NYSE:WFC), and Citigroup Inc. (NYSE:C). Investors will also monitor results from healthcare giants UnitedHealth Group Inc. (NYSE:UNH) and Johnson & Johnson (NYSE:JNJ).
  • Geopolitics & Oil: According to Reuters, President Donald Trump claimed he does not believe China and Russia are aiding Iran, despite ongoing Houthi strikes on Saudi Arabia’s King Khalid International Airport. Meanwhile, Trump announced an “energy ceasefire” between Ukraine and Russia alongside a controversial agreement to purchase Russian diesel. Consequently, oil prices retreated, with Brent crude slipping 1.11% to $105.47 a barrel, and WTI crude dropping 1.18% to $92.63 a barrel.
  • Economic Data: Tuesday’s docket features September’s NFIB index of small business optimism at 6:00 a.m. ET, existing home sales at 10:00 a.m. ET, and the monthly Treasury balance at 2:00 p.m. ET.

The Bear Case and Market Outlook

According to David Morrison, Senior Market Analyst at Trade Nation, while there is an 84% chance of another Fed rate hike before year-end, the broader market remains vulnerable to the tech sector’s performance ahead of Wednesday’s critical U.S. CPI update.

Political noise is also adding friction to the fiscal outlook. Former Rep. Marjorie Taylor Greene criticized President Trump’s proposed $5,000 citizen dividend payment as a “socialist scheme,” warning it would add $1.35 trillion to the national debt. With the debt already climbing past $40.3 trillion, investors are weighing the long-term impact of these fiscal promises on borrowing costs and Treasury yields.

How the Previous Bet Played Out

The Oct. 12 Polymarket contract resolved “Down.” The contract recorded $56,604 in total trading volume.

On Monday, the SPDR S&P 500 ETF Trust (NYSE:SPY) and Invesco QQQ Trust ETF (NASDAQ:QQQ), which track the S&P 500 and Nasdaq-100, respectively, closed mixed. SPY fell 0.060% to $778.10, while QQQ declined 0.70% to $746.04. Meanwhile, the Dow tracker, State Street SPDR Dow Jones Industrial Average ETF Trust (NYSE:DIA), ended 0.35% higher at $517.91.


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Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.

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