Costco Wholesale and Dollar General have each filed fresh quarterly results with the Securities and Exchange Commission, and the numbers in those filings explain why fund managers keep returning to both stocks as defensive picks for the second half of 2026. Costco reported for the quarter ended May 10, 2026, while Dollar General covered its first fiscal quarter ending May 1, 2026. Together, the two retailers offer a window into how scale-driven operators are protecting margins while consumer spending stays uneven.
Why Wall Street Keeps Betting on Costco and Dollar General
The case for both companies rests on a simple idea: each one controls costs in ways that most competitors cannot replicate quickly. Costco collects membership fees before a single item crosses the scanner, giving it a revenue stream that does not depend on markups. Dollar General, operating thousands of small-format stores in rural and suburban markets, generates traffic from price-sensitive shoppers who have few nearby alternatives. That structural advantage matters more when household budgets are tight and discretionary spending is under pressure.
A working hypothesis among equity analysts is that Costco’s membership renewal rates and Dollar General’s progress on shrink reduction could combine to push operating margins past the broader retail sector average by a meaningful amount in the December 2026 quarter. The logic is straightforward: membership fees flow almost entirely to the bottom line, and every dollar of shrink that Dollar General eliminates drops straight into gross profit. Whether the gap reaches 40 basis points or more depends on execution through the holiday season, but the direction of travel in both filings supports the thesis.
What the SEC Filings Show About Margins and Cash Flow
Costco’s latest quarterly report details controlled operating expenses alongside steady membership fee growth. The management discussion and analysis section describes a company adjusting product assortments without resorting to heavy promotional activity, a sign that traffic remains strong enough to support everyday pricing. Cash flow from operations stayed healthy, reinforcing the retailer’s ability to fund warehouse expansion and special dividends without stretching its balance sheet. The filing also points to disciplined inventory management, which reduces the risk of markdowns if demand slows later in the year.
Dollar General’s recent 10-Q filing tells a different but complementary story. The company reported inventory reductions and disciplined capital spending that preserved liquidity even as same-store sales growth softened. Shrink, which had weighed on margins in prior periods, showed signs of improvement after the company invested in loss-prevention technology and staffing changes. The filing also notes that Dollar General maintained flexibility on store remodels and new openings, suggesting management is willing to slow expansion if the payoff per store does not meet internal hurdles. That willingness to adjust growth plans is central to keeping free cash flow positive through a choppy demand environment.
Both companies emphasized in their regulatory filings the ability to shift product mix quickly. For Costco, that means rotating seasonal goods and private-label items through its warehouses to keep members engaged. For Dollar General, it means leaning into consumables, the low-margin but high-frequency purchases that drive repeat visits. The shared thread is operational agility backed by supply-chain scale, a combination that insulates each retailer from the promotional wars hurting mid-tier department stores and specialty chains.
Open Questions Heading Into the Second Half of 2026
Even with those advantages, investors still face several unresolved questions as the year progresses. One uncertainty is how far Costco can push membership pricing without denting renewal rates. The latest filing underscores how dependent operating income has become on fees rather than merchandise margins. If wage growth slows or unemployment ticks higher, households may scrutinize recurring charges more closely, and the company would need to prove that its value proposition can withstand that pressure.
Another issue is the sustainability of Dollar General’s shrink improvements. The first-quarter numbers show progress, but the measures implemented-more labor hours in key departments, additional security technology, and tighter processes-come with ongoing costs. Management will have to demonstrate that the gross margin benefit from lower shrink more than offsets those expenses, particularly in lower-volume stores where the economics are more fragile. Any backsliding during the high-traffic holiday period could quickly erode the margin gains highlighted in the spring.
Macro conditions also loom large for both retailers. If inflation remains sticky in essential categories such as food and household goods, Dollar General could see stronger traffic as consumers trade down from higher-priced formats. At the same time, persistent cost pressures on labor and logistics would test its ability to hold prices low while defending profitability. Costco, with its scale and membership economics, may be better positioned to absorb cost volatility, but it is not immune to shifts in discretionary categories like electronics, home goods, and big-ticket seasonal items that are important profit drivers.
Finally, capital allocation will be a focal point for shareholders. Costco has a history of funding new warehouses and periodic special dividends out of robust operating cash flow, and the latest quarter suggests that pattern can continue if trends hold. Dollar General, by contrast, is balancing investments in store standards and technology with shareholder returns. How aggressively it pursues buybacks or dividends while it is still working through operational fixes will signal management’s confidence in the trajectory outlined in its recent results.
For now, the SEC filings show two retailers using scale and discipline to navigate an uneven consumer landscape. Whether that translates into continued outperformance in the second half of 2026 will depend less on headline sales growth and more on the quieter work of keeping costs, shrink, and capital spending tightly under control.
Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
