Tesco reported slower-than-expected UK sales growth in its first quarter, with like-for-like sales rising 1.8% to £13.4bn in the three months to May. This fell short of analyst estimates around 2.2%, sending the company's share price down 2.4% in early London trading. The supermarket chain continues to gain ground in the competitive grocery market, reaching a 28% share according to Worldpanel data - its highest level in more than a decade.

Chief executive Ken Murphy attributed the slowdown to economic uncertainty affecting consumer spending patterns. He specifically cited the conflict in the Middle East as creating ongoing uncertainty for customers, while also noting difficult comparisons against strong performance from the previous year. These headwinds come despite Tesco's position as Europe's largest grocery chain by market value.

The company maintained its cautious outlook for the year, forecasting adjusted operating profit between £3bn and £3.3bn. This restraint reflects broader concerns about inflationary pressures and geopolitical tensions impacting consumer behavior across the UK retail sector. Tesco's ability to grow market share while managing profit expectations suggests the retailer is prioritizing volume over margin expansion in a challenging environment.

Investors will watch how Tesco balances market share gains against margin pressure as the UK economy navigates post-pandemic adjustments and global supply chain disruptions. The retailer's performance signals broader trends in consumer spending patterns that could influence sector-wide strategies.