S&P 500 companies reported blended earnings growth of about 13.1% year-over-year for Q3 2025, accompanied by revenue growth of nearly 8.3% . The index’s net profit margin reached approximately 13.1%, its highest level since 2009. The gains were supported by strong performance across technology, financials, and select consumer sectors. The combined revenue and margin expansion lifted overall index profitability heading into the final quarter of 2025.