Fundamentals · Reading financial reports
What is fundamental analysis? A beginner’s guide with Apple
How fundamental analysis works: the business, the statements, the ratios and the valuation, worked through Apple’s fiscal 2025 10-K with real numbers.
On this page
- What fundamental analysis is
- The four-step workflow
- Step 1: understand the business
- Step 2: read the financial statements
- Step 3: turn the numbers into ratios
- Step 4: value the business
- Top-down versus bottom-up
- Where the data comes from
- The limits of fundamental analysis
- How Finabase does it
- Frequently asked questions
- Summary
Fundamental analysis is the work of judging a company by its business rather than by its share price chart. You study what the company sells, how much it earns, what it owns and owes, and how much cash it really produces. Then you ask whether the price the market charges for a share makes sense against all of that. The raw material is public: every US-listed company files audited financial statements with the Securities and Exchange Commission (SEC), free to read on its EDGAR system.
This guide is the hub of the Finabase Learn fundamentals section. It explains what fundamental analysis is and how it differs from technical analysis, walks through the four-step workflow analysts follow, and shows each step on one real company: Apple Inc. in fiscal 2025, the year that ended on September 27, 2025. Every number comes from Apple's 10-K annual report or its earnings release. Each section ends with links to the deeper pages, so you can start here and go as far as you like.
What fundamental analysis is
A share of stock is a claim on a business: on its future profits, and on whatever is left of its assets after its debts are paid. Fundamental analysis takes that idea literally. If a share is a slice of a business, then what the share is worth depends on what the business is worth, and that depends on how much cash it will produce over its life. An analyst studies the company to estimate that value, an estimate called intrinsic value, and compares it with the market price.
The comparison is the whole point. A wonderful business can be a poor investment at too high a price, and an ordinary business can be a reasonable one at a low enough price. Fundamental analysis does not tell you which stocks are good companies. It tells you what you are paying for, and what has to go right for that price to be justified.
There are two broad schools of thought about how to use it. Value investors look for prices below a conservative estimate of intrinsic value, leaving room for error (the idea behind a Margin of safety: Benjamin Graham’s rule for valuation errors). Growth investors accept higher multiples of today's earnings for businesses they expect to grow much faster than average. Both rely on the same statements and ratios; they differ in what they will pay for future growth. The Growth vs value investing: styles, P/E and the long record guide compares the two.
Fundamental versus technical analysis
Technical analysis studies the price and volume of a stock itself: trends, support and resistance, momentum indicators such as the Relative Strength Index (RSI): how to read and use it, and candlestick patterns. It assumes that much of what matters is already reflected in the price, and that the way prices move carries information about where they may go next. Fundamental analysis ignores the chart and studies the company.
| Question | Fundamental analysis | Technical analysis |
|---|---|---|
| What it studies | Revenue, profit, cash flow, debt, competition | Price, volume, trends and patterns |
| Main sources | 10-K, 10-Q, 8-K, earnings calls | Price charts and order flow |
| Typical horizon | Quarters to years | Minutes to months |
| The core question | What is this business worth? | Where is the price likely to go next? |
| What it can't tell you | When the market will agree with you | Why the business is worth what it is worth |
| Typical output | An estimate of value, a list of risks | Entry and exit levels |
Many investors use both: fundamentals to decide what to own, and charts to think about when. Neither is a prediction machine. The rest of this guide is about the fundamental side.
The four-step workflow
Professional analysts organize the work in roughly the same order. Each step depends on the one before it, so the order matters.
- The business. What does the company sell, to whom, and why do customers keep buying? Who are the competitors, and what stops them from taking share?
- The statements. What do the income statement, balance sheet and cash flow statement say about revenue, profit, assets, debt and cash?
- The ratios. How do margins, returns, debt levels and cash conversion compare with the company's own history and with its peers?
- The valuation. Given all of that, what does today's price imply about the future, and is that implied future plausible?
The rest of this section works through each step on Apple.
Step 1: understand the business
Numbers mean little until you know what produces them. The first place to read is Item 1, Business of the company's 10-K, followed by Item 1A, Risk Factors. In Apple's fiscal 2025 10-K these run from page 1 to page 17.
Apple reports its sales two ways. By product category, it sells iPhone, Mac, iPad, Wearables, Home and Accessories, and Services (the App Store, advertising, iCloud, AppleCare, Apple Music, Apple Pay and other subscriptions). By reportable segment, it splits the same sales by geography: the Americas, Europe, Greater China, Japan and the Rest of Asia Pacific. Apple manages its business by geography, so the five regions are its official segments under US accounting rules; the product categories are a second breakdown it discloses alongside them.
| Category (fiscal 2025) | Net sales | Share of total | Change vs fiscal 2024 |
|---|---|---|---|
| iPhone | $209.6B | 50.4% | +4% |
| Services | $109.2B | 26.2% | +14% |
| Wearables, Home and Accessories | $35.7B | 8.6% | −4% |
| Mac | $33.7B | 8.1% | +12% |
| iPad | $28.0B | 6.7% | +5% |
| Total | $416.2B | 100% | +6% |
Two facts jump out. One product line, iPhone, still brings in half of all sales. And Services, the fastest-growing category, earns far more per dollar than hardware does.
This is what "understanding the business" buys you. If Services keep growing faster than hardware, Apple's overall margin rises even if no individual price changes. If a regulator forces lower App Store commissions, the hit lands on the most profitable part of the company. The Income statement: how to read one line by line, with Apple guide takes this products-versus-services split further, and Economic moats: what protects a company’s profits, and how to test it asks what protects margins like these.
The geographic view
The segment view shows where the sales come from. The Americas were 42.9% of fiscal 2025 sales and grew 6.8%. Europe, which in Apple's definition includes India, the Middle East and Africa, was 26.7% and grew 9.6%. Japan grew fastest at 14.6%. Greater China, 15.5% of sales, was the one region that shrank, by 3.8% from $67.0 billion to $64.4 billion; MD&A attributes the drop mainly to lower iPhone sales there. An analyst reading this asks follow-up questions: is that a cycle or a trend, and how much of Apple's supply chain also sits in that region? The risk factors section answers part of the second question.
Qualitative factors
Not everything that matters fits in a table. Analysts weigh qualitative factors alongside the numbers:
- Competitive position. How hard is it for a rival to take customers? Apple's 10-K describes markets with "aggressive price competition," which is a reason to ask what lets it keep a 46.9% gross margin anyway.
- Management and capital allocation. What does management do with the cash? In fiscal 2025 Apple spent $90.7 billion buying back its own stock and $15.4 billion on dividends. The Capital allocation: how management spends cash, and how to judge it guide explains how to judge choices like that.
- Concentration. Apple's 10-K says some components come from single or limited sources, and that a significant majority of its manufacturing is done by outsourcing partners located primarily in China mainland, India, Japan, South Korea, Taiwan and Vietnam.
- Regulation and litigation. Item 3 of Apple's 10-K lists an antitrust suit by the US Department of Justice, the Epic Games litigation over the App Store, and EU Digital Markets Act investigations, all of which bear on the Services business.
Step 2: read the financial statements
The financial statements are the scoreboard. A US public company presents them under US generally accepted accounting principles (GAAP), and an independent auditor checks the annual set. There are three core statements, each answering a different question.
| Statement | Question it answers | Apple, fiscal 2025 |
|---|---|---|
| Income statement: how to read one line by line, with Apple | How much did the company earn over the year? | Net income $112.0B |
| Balance sheet: assets, liabilities and equity explained with Apple | What does it own and owe on the last day? | Assets $359.2B, equity $73.7B |
| Cash flow statement: operating, investing and financing explained | How much cash came in and went out, and why? | Cash from operations $111.5B |
The statements connect. Net income from the income statement starts the cash flow statement and feeds retained earnings on the balance sheet; the cash flow statement explains the change in the balance sheet's cash line. The How the three financial statements link, checked on Apple guide traces each connection.
Apple's statements already raise questions a curious reader should chase. Net income of $112.0 billion is larger than shareholders' equity of $73.7 billion. That is unusual, and it is not a sign of trouble: Apple has returned so much cash through buybacks over the years that its accounting equity is small relative to its profits. Cash from operations of $111.5 billion was almost exactly equal to net income, a sign that reported profit turned into real cash (the subject of Quality of earnings: accruals, cash conversion and red flags). And current liabilities of $165.6 billion exceeded current assets of $148.0 billion, so Apple runs with negative working capital: suppliers are paid more slowly than customers pay Apple. The Working capital and the cash conversion cycle, with Apple’s numbers page explains why that can be a strength.
Step 3: turn the numbers into ratios
A raw number like "$133.1 billion of operating income" is hard to judge on its own. Ratios scale numbers so you can compare a company with its past, with its peers, and with the price you pay. They fall into four families.
| Family | What it measures | Apple, fiscal 2025 example | Go deeper |
|---|---|---|---|
| Profitability | How much of each dollar of sales becomes profit | Operating margin 32.0% | Profit margins: gross, operating and net margin explained, Return on equity (ROE): formula, DuPont analysis and pitfalls |
| Health | Whether debts and bills can be paid | Debt-to-equity 1.34 | Debt-to-equity ratio: formula, versions and when it misleads, Current ratio and quick ratio: measuring short-term liquidity |
| Cash | How much profit becomes spendable cash | Free cash flow $98.8B | Free cash flow (FCF): definition, formula and Apple example |
| Valuation | What the market charges for a dollar of earnings | Trailing P/E 34.2 | Price-to-earnings ratio (P/E): formula, examples and limits, EV/EBITDA: the capital-structure-neutral valuation multiple |
Ratios need a comparison to mean anything. A 32.0% operating margin would be extraordinary for a grocery chain and ordinary for some software companies. Compare a company first with its own history, then with direct competitors, and only loosely with the market as a whole. Apple also shows why a single ratio can mislead: its Return on equity (ROE): formula, DuPont analysis and pitfalls was about 171% in fiscal 2025, not because the business became magically more profitable but because buybacks shrank the equity in the denominator.
Step 4: value the business
Valuation joins the business to the price. There are two broad approaches, both covered in Valuation methods: intrinsic, relative and asset-based compared.
- Relative valuation compares price multiples (price-to-earnings, price-to-sales, enterprise value to EBITDA) with peers or history. It is quick and tells you what the market pays for similar businesses. The Comparable company analysis: how to build and read a comps table page shows a worked comparison of Apple, Microsoft and Alphabet.
- Intrinsic valuation estimates future cash flows and discounts them to today, as in a Discounted cash flow (DCF): a step-by-step valuation on Apple model. It forces every assumption into the open, and small changes to those assumptions move the answer a lot.
The simplest starting point is the price-to-earnings ratio: the share price divided by a year of earnings per share.
What does a P/E of 34.2 tell you? On its own, nothing about whether the price is right. It says the market expects Apple's earnings to keep growing, or to be unusually durable, or both. The analyst's job is to ask what growth that price implies and whether it is plausible. A rough rule of thumb is that the US market as a whole has more often traded in the teens to low twenties times trailing earnings, so a multiple in the thirties carries high expectations. That is a description of what the price assumes, not a verdict that it is too high.
Top-down versus bottom-up
Analysts also differ in where they start.
Top-down analysis starts with the economy and narrows. You form a view on growth, interest rates and inflation; pick the sectors likely to benefit; then look for the best companies within them. A top-down analyst might start from consumer spending and tariffs, decide that consumer hardware faces cost pressure, and only then look at Apple. The Stock market sectors and industries: GICS and sector ETFs explained guide covers the sector layer.
Bottom-up analysis starts with the company and works outward. You find a business you understand, study its filings in depth, and value it largely on its own merits, checking the economy only for risks that would hit it directly.
| Approach | Starts with | Strength | Weakness |
|---|---|---|---|
| Top-down | Economy, rates, sector trends | Catches macro shifts that move whole sectors | Can miss great companies in out-of-favor sectors |
| Bottom-up | One company's business and filings | Deep, specific knowledge of each holding | Can underrate a recession or rate shock |
In practice most investors blend them. Apple's own 10-K does: its MD&A opens with "Macroeconomic Conditions" and "Tariffs and Other Measures" before it gets to the segment numbers.
Where the data comes from
The best fundamental data is free and comes straight from the company, through the SEC.
- Form 10-K, the annual report, with audited statements, MD&A and risk factors. Apple filed its fiscal 2025 10-K on October 31, 2025. See How to read a 10-K: a guided walkthrough of Apple’s annual report.
- Form 10-Q, filed for each of the first three fiscal quarters, with unaudited statements. See How to read a 10-Q: quarterly reports, nine-month columns and TTM.
- Form 8-K, for material events, including the earnings release a company furnishes on results day. Apple's Q4 fiscal 2025 release came on October 30, 2025, the day before the 10-K. See Form 8-K: what triggers it, the item numbers and how to read one and How to read an earnings release: a step-by-step guide.
- The proxy statement (DEF 14A), for executive pay, board elections and shareholder votes.
- Ownership filings: Forms 3, 4 and 5 for insider trades (Insider trading filings: Forms 3, 4 and 5 and how to read them) and Form 13F for large institutional holdings (13F filings: what institutional holdings reports show and miss).
The full map of forms, with their deadlines, is in SEC filings explained: 10-K, 10-Q, 8-K, proxy, 13F and more. Everything is on EDGAR, and the SEC also publishes the statement data in machine-readable form (XBRL) through free APIs at data.sec.gov. Data vendors, broker apps and sites like Finabase repackage the same filings. When a vendor's number disagrees with the filing, the filing wins.
Earnings calls are the other primary source: management presents the quarter and answers analysts' questions live. They are not SEC filings, but what is said there is public and often more revealing than the prepared text. The Earnings calls: how they work and what to listen for page explains how to listen to one.
The limits of fundamental analysis
Fundamental analysis is the most durable way to think about what a business is worth, but it has real limits. Knowing them is part of using it well.
The market can disagree with you for a long time. Even if your estimate of value is right, nothing forces the price to converge on it on any schedule. Prices are set by buyers and sellers with their own views, and a stock can stay above or below a careful estimate for years. Being early can look exactly like being wrong.
Accounting involves judgment. GAAP leaves many choices to management: when revenue is recognized (Revenue recognition: the ASC 606 five steps, with Apple’s numbers), how long assets are depreciated, how big a tax reserve to hold. Apple's own auditor singled out uncertain tax positions as its critical audit matter for fiscal 2025, because the company held $23.2 billion of gross unrecognized tax benefits that depend on how tax authorities interpret the law. Two honest accountants could book different numbers.
One-time items distort comparisons. Apple's fiscal 2024 net income included a one-time $10.2 billion tax charge tied to the European Commission's State Aid decision. On a GAAP basis, diluted EPS rose 22.7% in fiscal 2025, from $6.08 to $7.46. Excluding that charge, Apple's own adjusted fiscal 2024 EPS was $6.75, so underlying growth was closer to 10.5%. Which number you use changes how expensive the stock looks. The GAAP vs non-GAAP earnings: how adjusted numbers are built page explains how to handle this.
The statements look backward. A 10-K describes a year that is already over. The price reflects expectations for years that haven't happened. Your analysis is only as good as your judgment about whether the past is a guide to the future.
Not everything is on the balance sheet. Apple's brand, its ecosystem of developers and its engineering culture are worth a great deal, and almost none of it appears as an asset. Internally built intangibles are mostly expensed under GAAP, not capitalized.
How Finabase does it
Finabase puts the raw material for each step on a company's symbol page.
- The statements. The Financials tab shows the income statement, balance sheet and cash flow statement in three cards, with an Annual or Quarterly toggle and up to 40 periods of history. Click any line to chart its history. A Revenue & Expenses flow diagram traces one period from revenue through costs to net income, and can add a column that splits revenue by segment or region when that data reconciles. Quarterly periods are labeled by calendar quarter, so Apple's fiscal third quarter ended June 27, 2026 appears as "Q2 2026". The How to read the Finabase financials tab guide walks through it.
- The ratios. The Valuation tab charts ten fiscal years of annual ratios in groups: valuation (P/E, P/S, P/B, P/FCF, EV/EBITDA, EV/Sales, FCF yield), profitability (gross, operating and net margin, ROE, ROIC, ROA), growth, financial health (current and quick ratio, debt to equity, net debt to EBITDA, interest coverage) and dividends. A financial-health card adds an Altman Z-Score, a Piotroski F-Score and a data-provider rating.
- The snapshot. The summary page lists key statistics such as market cap, enterprise value, trailing and forward P/E, PEG ratio and profit margin, passed through from the data provider on a trailing-12-month basis.
- Context. The Earnings tab lists past reports with estimate,
reported EPS and surprise; the Holders tab shows institutional
owners from 13F filings and insiders;
/insiderlists Form 4 open-market trades across the market.
Finabase does not compute an intrinsic value or run a DCF for you, and its screener filters on a short list of fundamentals (market cap, P/E, EPS, price to sales, dividend per share and dividend yield). The judgment steps stay with you.
Frequently asked questions
Is fundamental analysis better than technical analysis?
Neither is better in general; they answer different questions. Fundamental analysis asks what a business is worth and suits investors with horizons of quarters to years. Technical analysis studies price behavior and is used more for timing over days to months. Many investors use fundamentals to choose what to own and charts to think about timing.
What are the most important numbers in fundamental analysis?
There is no single most important number, but most analysts start with revenue growth, operating margin, free cash flow, debt and a valuation multiple such as the P/E. For Apple in fiscal 2025 those were +6.4% sales growth, a 32.0% operating margin, $98.8 billion of free cash flow, $98.7 billion of total debt against $132.4 billion of cash and marketable securities, and a trailing P/E of 34.2 at the September 26, 2025 close.
Where can I find a company's financial statements for free?
On the SEC's EDGAR system at sec.gov, where every US public company files its 10-K and 10-Q reports. Companies also post them on their investor-relations websites, and apps including Finabase display the same numbers in charts and tables.
How long does fundamental analysis take?
A first pass on a familiar company takes an hour or two: read the business section, skim MD&A, scan the three statements and compute a handful of ratios. A thorough study of a 10-K, its notes, several years of history and a competitor or two can take days. The How to research a stock: a step-by-step guide for beginners guide offers a structured first pass.
Can fundamental analysis predict stock prices?
No. It estimates what a business is worth, not what the price will do next. Prices can stay far from any estimate of value for long periods, and the estimate itself depends on assumptions that may prove wrong.
Summary
Fundamental analysis judges a company by its business: what it sells, what it earns, what it owns and owes, and how much cash it produces, and then asks what the share price assumes about all of that. The workflow runs from understanding the business, through the three financial statements and the ratios built from them, to a valuation that ties the business back to the price. Apple's fiscal 2025 numbers show why each step matters: the mix of high-margin Services inside $416.2 billion of sales, profits larger than book equity after years of buybacks, a P/E of 34.2 that carries high expectations, and a one-time tax charge that changes how fast earnings appear to grow. The data is free in SEC filings. The judgment, and an honest sense of its limits, is the part no filing supplies.
Sources and further reading
- Apple Inc. — Form 10-K for the fiscal year ended September 27, 2025 (filed October 31, 2025)
- Apple Inc. — Form 8-K, Q4 fiscal 2025 earnings release, Exhibit 99.1 (October 30, 2025)
- SEC EDGAR — Apple Inc. filing index (CIK 0000320193)
- SEC — EDGAR application programming interfaces (XBRL data on data.sec.gov)
- Finabase chart data — AAPL daily closes (close of September 26, 2025)