Campbell Soup’s Wide Moat and Undervalued Free Cash Flow Make It a Durable Compounder to Own for Decades

The only stock worth owning for decades is one that can compound wealth reliably over long cycles. This requires a simple, yet powerful framework: a wide economic moat, consistently high capital efficiency, and a price that offers a margin of safety relative to its intrinsic value. This is the bedrock of value investing, a philosophy championed by Warren Buffett and his mentor, Benjamin Graham.

A wide economic moat is the first and most critical requirement. It refers to a company's lasting competitive advantage that protects it from rivals, much like a castle's moat defends it from attackers. This advantage-whether from strong brand loyalty, cost leadership, network effects, or regulatory barriers-allows the business to earn high returns on capital for extended periods. As Morningstar notes, these companies typically derive their edge from factors like strong brand recognition, network effects, high customer switching costs, regulatory hurdles and economies of scale. The result is durable pricing power, stable margins, and the ability to reinvest profits to further widen the moat. In contrast, firms in competitive industries see profits squeezed by rivals, making them poor long-term holdings.

Morningstar's "core stock" framework operationalizes this philosophy. According to the firm's chief US market strategist, a core stock must have a wide economic moat, predictable cash flows, and capable management. These are the hallmarks of a durable compounder. The strategy is to buy these high-quality businesses when they trade at a discount to their fair value, thereby building a margin of safety into the investment. For instance, Morningstar recently highlighted Campbell's and Guidewire Software as core stocks for 2026, citing their wide moats and attractive valuations.

The Morningstar Wide Moat Focus Index serves as a practical tool to find these opportunities. It tracks companies with wide moat ratings that are trading at the lowest current prices relative to Morningstar's fair value estimates. This index is a "fertile hunting ground" for long-term investors seeking high-quality stocks at cheap prices. As of a recent reconstitution, the most undervalued stock in the index was trading 41% below our fair value estimate. The index is reconstituted semiannually, ensuring it remains focused on the least-expensive high-quality stocks. For the disciplined investor, this framework provides a clear path: identify the wide moat, assess the predictability of its cash flows, and wait for a price that offers a margin of safety. That is how durable compounders are found.

Case Study: The Champion - Campbell Soup (CPB)

Campbell Soup (CPB) is a textbook example of a durable compounder in the making, perfectly embodying the core stock framework. The company has undergone a deliberate transformation, shifting its portfolio from a single-product staple to a more diversified consumer staples business. This strategic pivot is central to its new story. The core soup lineup, once the heart of the company, now accounts for just 25% of total sales. In its place, the snacks segment has grown to represent about 40% of sales. This isn't just a rebranding; it's a fundamental change in the business mix, moving toward categories with higher growth potential and better pricing power.

Management has driven this change with a focus on operational efficiency. By streamlining its supply chain and manufacturing network, the company has freed up capital and cash flow. This efficiency allows Campbell to increase spending behind its brands, particularly in the growing snack portfolio, creating a virtuous cycle. The results are a forecast for low-single-digit annual sales growth and mid- to high-single-digit adjusted average earnings per share growth over the next decade. More importantly, this disciplined execution has built a foundation of consistent free cash flow, which is the lifeblood for any long-term investor.

This brings us to the critical factor: valuation. Morningstar assigns Campbell a $60 fair value estimate for its shares. The stock is currently trading at a significant discount to that number, making it a compelling opportunity for patient capital. The implication of being "significantly undervalued" is that the market is not pricing in the company's transformation or its future cash-generating ability. For a value investor, this gap between price and intrinsic value is the margin of safety that makes the investment worthwhile.

The consistency of free cash flow is what makes this setup so attractive. As highlighted in broader market analysis, free cash flow is one of the most reliable indicators of financial strength. It provides the flexibility to return capital to shareholders through dividends and buybacks, invest in growth, and weather economic cycles. For Campbell, this predictable cash flow supports its attractive dividend yield and the forecast for high-single-digit growth in the dividend over time. It also funds the strategic investments needed to grow the snack business. In essence, the company's ability to compound is now underpinned by a more resilient and diversified cash flow engine. This is the hallmark of a business that can be owned for decades.

Case Study: The Challenged - Scholastic (SCHL) and Salesforce (CRM)

The framework for durable compounders is not just about finding winners; it is equally about identifying the traps. Two stocks that exemplify the risks of profitability without a durable moat are Scholastic and Salesforce. Both generate profits, but their competitive positions and long-term cash flow prospects are under significant pressure, making them poor candidates for decades-long ownership.

Scholastic's story is one of muted growth and thin margins. The company, famous for its children's book fairs, has seen its sales expand at a meager 4.9% annual rate over the last five years. This sluggish growth suggests its core business is losing momentum relative to broader consumer discretionary peers. More telling is the profitability picture. Scholastic's trailing 12-month GAAP operating margin sits at just 3.1%. In a competitive landscape, such a low margin leaves little room for error. It constrains the company's ability to invest in new growth initiatives, fund marketing, or weather economic downturns. The result is a business that is profitable today but lacks the pricing power and operational efficiency to compound wealth reliably over the long term. Its valuation, at 24.1 times forward earnings, prices in a future that may not materialize.

Salesforce presents a different, yet equally concerning, challenge. The company is a leader in enterprise software, but its position is now under threat from a fundamental shift in the technology model. The Morningstar Wide Moat Focus Index, which tracks companies with durable advantages, lists Salesforce as a detractor. The primary reason is the growing risk of disruption from artificial intelligence. AI-driven tools are poised to automate many of the functions that enterprise software platforms currently manage, from customer relationship management to workflow automation. This isn't a distant threat; it is a potential redefinition of the entire market. If AI can deliver these capabilities more efficiently and at lower cost, Salesforce's high-margin subscription model faces erosion. The company's vast installed base and network effects are formidable moats, but they are not impervious to technological substitution. The market is now pricing in this uncertainty, which is why Salesforce is flagged as a detractor in the moat index.

The common thread between these two companies is the vulnerability of profitability without a wide, defensible moat. Scholastic's thin margins and slow growth signal a business struggling to protect its economic advantage. Salesforce's status as a detractor highlights how even dominant market positions can be challenged by disruptive innovation. For the value investor, both represent situations where the margin of safety is eroding. They are businesses that may generate cash in the near term, but their ability to compound that cash into lasting wealth is in serious doubt.

The Valuation and Catalyst Test

The final test for any long-term investment is whether the business can compound capital efficiently and what catalysts could unlock its value. For the champion, Campbell Soup, the primary metric is clear: its return on invested capital (ROIC) must consistently exceed its weighted average cost of capital (WACC). This simple comparison reveals whether the company is creating or destroying shareholder value with each dollar invested. As the Morningstar framework emphasizes, a wide economic moat should translate into high returns on capital, which is the engine of compounding.

For Campbell, the forecast is supportive. Management's strategic shift to a more diversified portfolio and its focus on operational efficiency are designed to bolster this metric. The company's ability to generate consistent free cash flow provides the capital to reinvest at attractive rates. The key catalyst here is execution. If Campbell continues to grow its snack business and maintain cost discipline, its ROIC should remain above its WACC, validating its compounding thesis. The market's current undervaluation suggests it is not yet pricing in this future efficiency. A re-rating would occur as investors recognize the improved cash flow profile and the sustainability of the transformation.

For the challenged stocks, the watchpoint is the opposite: the risk of ROIC eroding further. Scholastic's low 3.1% operating margin and meager 4.9% sales growth signal a business struggling to deploy capital effectively. In a competitive environment, thin margins leave little room for error, making it difficult to fund innovation or marketing without sacrificing profitability. The catalyst for Scholastic is not a re-rating, but a fundamental turnaround in its competitive position-a scenario that is not currently reflected in its valuation.

Salesforce faces a different, yet equally critical, threat. The company is a detractor in the Morningstar Wide Moat Focus Index, primarily due to the risk of disruption from artificial intelligence. If AI tools automate core functions of enterprise software, the high-margin subscription model that supports Salesforce's current ROIC could be undermined. The key metric to monitor is whether the company can innovate fast enough to maintain its pricing power and capital efficiency. The catalyst here is not execution on a known path, but successful navigation of a disruptive technology shift-a high-stakes gamble that the market is currently pricing with skepticism.

In summary, the valuation and catalyst test hinges on capital efficiency. For Campbell, the thesis is that operational execution will keep ROIC above WACC, leading to a re-rating. For Scholastic and Salesforce, the risk is that competitive pressures or technological disruption will cause ROIC to deteriorate, further eroding the margin of safety. The disciplined investor must monitor these metrics, as they are the ultimate indicators of whether a business is truly durable or merely profitable today.