Walmart shares plunged over 9% after the company reported weaker-than-expected U.S. comparable sales growth.
U.S. same-store sales grew 2.6%, missing the 3.5% growth analysts anticipated.
This performance marks the slowest growth for the retail giant in over six years.
The disappointing figures overshadowed beats in both overall revenue and profit.
Walmart also issued a soft third-quarter earnings forecast, triggering the stock's largest single-day drop since May 2022.
The decline weighed on the consumer staples sector, making it the worst-performing group in the S&P 500.
Management attributed the slowdown partly to price caps within the health and wellness business.
Investors are now concerned these results signal a broader pullback in American consumer spending.