Walmart (WMT) shares fell on Thursday following a cautious outlook from management, despite reporting solid Q1 results. The retail giant achieved a 7.3% year-over-year revenue increase to $177.8 billion, with U.S. comparable sales rising 4.1%. E-commerce sales surged by 26%, bolstered by store-fulfilled services, while high-margin advertising revenue jumped 37%. However, rising fuel costs pressured profit margins, leading to a 5% increase in operating income to $7.5 billion.

Investors reacted negatively to comments from CEO John Rainey, who indicated that the boost from higher tax refunds may not be sustainable. As gasoline prices rise, consumer spending could be adversely affected in the coming quarters. While Walmart maintained its full-year forecasts, the potential for reduced consumer spending raises concerns about future earnings performance.

Market professionals should closely monitor consumer behavior trends and Walmart’s ability to leverage its low-price reputation as economic pressures mount, which could significantly impact its market share and stock performance.

Source: fool.com