Walmart's stock (NASDAQ:WMT) experienced a notable decline of 4.2% over the past week, prompting investors to reassess the company's private-label growth strategy. On Friday, the stock rose by 1.0% to close at $109.47, yet this bounce was insufficient to offset the week's losses, which left Walmart trailing behind major retail competitors like Target and Costco.

As of now, Walmart's trailing price-to-earnings (P/E) ratio stands at 38.4, significantly higher than Target's 18.1 and Costco's 47.0. This disparity raises questions about Walmart's valuation, especially as the company pushes its private-label brand, Bettergoods, which is projected to expand from 300 to nearly 1,000 products, according to analyst estimates from RBC Capital Markets.

Walmart's strategy to enhance its private-label offerings is seen as a shift from a defensive tactic to a core growth strategy. Chief merchandising officer Julie Barber noted that “shopping smart has become a mindset, not a customer segment,” indicating a broader demand for value among consumers across various income levels.

In the first quarter, Walmart reported a 4.1% growth in comparable U.S. sales, with e-commerce sales soaring by 26% and global advertising revenue increasing by 37%. This growth suggests that the expanded assortment of Bettergoods could attract not only budget-conscious shoppers but also higher-income customers.

However, competition is intensifying in the retail sector. Target plans to introduce 600 new private-label food and beverage items over the next two years, with its owned brands already accounting for approximately 30% of sales. As Walmart prepares to release its second-quarter report on August 20, investors are keenly awaiting evidence that its market share gains are sustainable without significant price reductions.

Upcoming economic indicators, including U.S. second-quarter GDP and consumer spending data, will also play a crucial role in shaping household demand expectations and influencing equity valuations. While Walmart's stock has shown resilience, the risks of a potential economic slowdown or changes in discretionary spending could pose challenges to its growth trajectory.