Warren Buffett Stock Checklist: 7 Criteria Every Value Investor Must Check

A moat is the reason a company can protect profits from competitors. Buffett cares because great businesses are not just profitable today; they can stay profitable even when rivals try to take share. In practice, look for pricing power, brand strength, switching costs, network effects, cost advantages, or regulated assets that are hard to replicate.

For example, here is how Apple scores on these 7 criteria →. Its ecosystem and switching costs are exactly the kind of moat Buffett-style investors usually want to test. For a different kind of moat, see Costco's Buffett report →, where membership economics and repeat demand matter more than product novelty. In healthcare, Eli Lilly's Buffett Score → shows how patents and payer relationships can create a moat, while MP Materials' report → is a useful edge case where a strategic supply-chain position exists even though the financial profile is still uneven.

Buffett prefers businesses that grow earnings steadily because predictability reduces risk. A company with erratic profits is harder to value and usually more exposed to cycles, weak pricing power, or poor capital allocation. You do not need hypergrowth. You need a business that can increase earnings over time without relying on perfect conditions.

Return on equity measures how efficiently management turns shareholder capital into profit. Buffett uses it because a strong business should not need excessive capital to produce attractive returns. High ROE can signal pricing power, disciplined reinvestment, and a business model that scales without constant balance-sheet strain.

Debt can amplify good results, but Buffett does not want a business that only works when credit is easy. Low debt gives a company flexibility during recessions, rising-rate environments, and industry slowdowns. It also lowers the odds that shareholders get diluted or the company is forced into bad refinancing decisions at the wrong time.

Buffett does not buy great businesses at any price. He wants valuation discipline. P/E is only a shortcut, but it helps you avoid paying an obvious premium for quality. The real question is whether the stock trades below a conservative estimate of intrinsic value based on earnings power, growth durability, and downside risk.

Earnings matter, but free cash flow proves the business turns accounting profit into real cash. Buffett values that because cash can be reinvested, used to reduce debt, repurchase shares, or survive a bad year without external financing. Companies with weak cash conversion often look better on paper than they do in reality.

Buffett backs managers who allocate capital rationally and communicate clearly. Even a strong business can be damaged by empire building, expensive acquisitions, or incentives that reward growth at any cost. The best management teams act like owners, protect returns on capital, and explain both successes and mistakes plainly.

If you want a live example tied closely to Buffett's own capital-allocation philosophy, compare your checklist with our Berkshire Hathaway Buffett Score →. It is a useful benchmark for how disciplined management and balance-sheet conservatism show up in practice.

This is where the Buffett checklist breaks down for most people. You need to review income statements, balance sheets, cash flow statements, valuation ranges, and qualitative signals on management and moat strength. Doing that for one company is manageable. Doing it for a real watchlist every week is slow, repetitive work.

Moat AI automates all seven checks. Instead of jumping between filings, ratio screens, and scattered notes, the platform applies the Buffett value investing criteria in one repeatable workflow. It screens for moat signals, earnings stability, ROE, debt, valuation discipline, free cash flow strength, and management quality so you can focus on the shortlist instead of the data cleanup.

For detailed DCF analysis on any of our picks, check out our partner Finlytics — they run discounted cash flow models on individual stocks and display a "Screened by Moat AI" badge on picks that passed our criteria.

A good Warren Buffett stock checklist is valuable because it helps you avoid bad businesses and overpaid stocks before they enter your portfolio. The edge comes from applying it consistently, not from reading about it once.

Moat AI was built for that consistency. We automate the seven Buffett criteria, narrow the universe to businesses that deserve deeper review, and package the results into a workflow busy investors can actually use. If you want AI-screened picks weekly instead of another research project, subscribe for $29 per month.