5 things to know before the stock market opens Friday

Key Points:

• OpenAI disclosed its annualized revenue at the end of September was about $18 billion less than previously reported, causing significant declines in tech stocks including CoreWeave, Oracle, and Nvidia, and dragging the Nasdaq Composite down over 1%.
• President Donald Trump stated the U.S. would not attack Iran before the November midterm elections, highlighting ongoing "productive discussions," while maintaining a naval blockade and opposing Iran's nuclear ambitions; oil prices rose despite this.
• Retail investors are increasingly using margin investing to amplify gains, exemplified by a Houston trader who refinanced his home to manage Tesla stock losses, though experts caution about the risks of intensified losses if asset prices fall.
• Delta Air Lines missed earnings estimates for the first time in two years and lowered its profit outlook due to rising fuel costs linked to the Iran conflict, although strong passenger demand persists despite a 23% increase in airfare prices year-over-year.
• Starbucks has reportedly considered acquiring Chipotle Mexican Grill, a move that could create a powerful restaurant conglomerate but raises concerns due to Starbucks’ ongoing turnaround efforts and the acquisition cost; Chipotle shares rose 6% on the news while Starbucks shares declined.