What Do You Own When You Buy a Stock? Market Cap, Book Equity, and Intrinsic Value

A common share gives you an ownership interest in a company, with the rights and risks attached to that share class. Your outcome depends on the business, the cash it distributes, and the price at which you eventually sell. Understanding that ownership interest comes before deciding whether the quoted price is attractive.

Think about becoming a part-owner of a neighborhood food shop. The shop needs its cash to pay bills and keep operating; owning a stake does not let you take the same fraction of its bank balance for yourself. A publicly traded business follows the same basic separation between company money and a shareholder's personal money. Source: SEC Investor.gov, Stocks.

Start with the rights attached to the shares

Common shares usually carry voting rights, while dividends depend on the company's decision to declare them. Different common-share classes can carry different voting power, so economic ownership and voting control may differ. Check the issuer's Description of Capital Stock rather than assuming every share has identical rights. Source: SEC Investor Bulletin on IPOs, Dual-class common stock.

Common shareholders also stand behind creditors and other claims with priority in a liquidation. They receive what remains, which can be nothing. Our example uses just one common-share class and no preferred shares, so we can compare values without allocating money among different equity holders. Source: SEC Investor Bulletin, Bankruptcy for a Public Company.

Four questions about one fictional business

Meet Qinghe Foods, an invented company used for teaching. This is a separate scenario from the income-statement article; the examples should not be combined into one historical set of accounts. Company amounts below are in millions of U.S. dollars, share counts are in millions of shares, and per-share figures are ordinary dollars.

At one observation date, Qinghe has 100 million common shares outstanding at $6.50 each. Its recorded assets are $800 million and recorded liabilities are $300 million. If it closes today, we assume its assets actually sell for $600 million and all claims ahead of common shareholders total $300 million. It has no noncontrolling interests, preferred shares, options, convertible debt, or other potentially dilutive instruments.

Market capitalization asks what the shares are priced at today

Market cap = current share price × shares outstanding. For Qinghe, $6.50 × 100 million shares = $650 million. That is the market's aggregate price for this common equity, not cash sitting in Qinghe's bank account. Source: SEC Investor.gov, Market Capitalization.

Use all outstanding shares, not merely the freely tradable portion. Market cap expresses a market price and its embedded expectations; it is not, by itself, an appraisal of everything the business owns or might earn. The equity amount here also excludes creditors' claims. Source: FINRA, Market Cap Explained.

Book equity asks what remains in the accounting records

Book equity = recorded assets − recorded liabilities. Qinghe's calculation is 800 − 300 = $500 million. Because our example has only one common-share class, that works out to 500 ÷ 100 = $5.00 of book equity per share. Source: SEC, Beginners' Guide to Financial Statements, Balance Sheets.

The $5 figure is an accounting result. Under the asset-sale assumption below, selling those same assets brings in less than their recorded amount. Real companies also have more complex accounting measurements and equity structures, so book equity is not a promise that shareholders can cash out at that amount.

Liquidation value asks what might remain if the business closes

Our simplified common-equity liquidation value is assumed asset-sale proceeds minus all claims ahead of common stock: 600 − 300 = $300 million, or $3.00 per share. For this calculation only, we leave out selling costs and taxes. A real liquidation requires checking those costs, additional obligations, and achievable sale prices.

Notice which asset number we used: $600 million of assumed proceeds, not $800 million of recorded assets. Subtracting liabilities from $800 million would answer the book-equity question instead. If proceeds do not cover the prior claims, common shareholders may receive nothing; this calculation creates no floor under the share price.

Intrinsic value asks what an explicit forecast is worth today

Intrinsic value is an estimate. Discounted cash flow is one approach: forecast the cash that can reach equity holders and account for timing and risk. Equity cash flows should be paired with an equity discount rate; cash flows for the whole business cannot simply be labeled common-equity value. Source: Aswath Damodaran, Intrinsic Valuation Foundations, slides 3, 6, and 9.

To make the calculation reproducible, imagine Qinghe operates for just one more year. There are no interim dividends or changes in share count. At year-end it closes, and we forecast $660 million available to all common shareholders after every liability, tax, and disposal cost has been settled. Nothing remains after that final payment. With an assumed 10% equity discount rate, today's estimated equity value is 660 ÷ (1 + 10%) = $600 million, or $6.00 per share.

Neither $660 million nor 10% is a verified forecast or a standard market rate. The $660 million is already net of all obligations, so subtracting $300 million again would count them twice. Adding today's assets or today's liquidation value to the $600 million estimate would also double-count value already represented by the final recovery.

Change only the discount rate to 12%, and the estimate becomes 660 ÷ 1.12 ≈ $589.29 million. Change only the forecast payment to $720 million, keeping the 10% rate, and it becomes 720 ÷ 1.10 ≈ $654.55 million. These assumptions put estimates on different sides of the $650 million market cap. Correct arithmetic cannot make a forecast certain.

All four can be valid answers to their respective questions. A market cap above book equity does not establish that shares are overpriced, and a quote below book value does not establish a bargain. Judging a price requires investigating future cash, reinvestment needs, and what could invalidate your assumptions.

Follow the payment before calling it a return

A cash dividend is a company payment to shareholders eligible for that distribution. A share repurchase is also funded by the company, but the payment goes to shareholders who actually sell into it. Remaining holders do not receive the repurchase cash directly. A buyback consumes company cash; a higher ownership percentage does not guarantee a higher per-share value or market price.

When you sell shares in the market, the buyer pays you; normally, the issuer is not refunding your original investment. Fees and applicable taxes can reduce a realized gain. Dividends and repurchases do not create extra cash out of nothing. Look for their separate financing outflows in an issuer's cash-flow statement. Sources: SEC Investor.gov, Stocks, P&G's 2026 Form 10-K, Consolidated Statements of Cash Flows.

Practice on a real filing, without giving the stock a target price

In P&G's 2026 Form 10-K, find Consolidated Balance Sheets, the June 30, 2026 column, and its millions-of-dollars unit note, except stated values. Record TOTAL ASSETS, TOTAL LIABILITIES, and TOTAL SHAREHOLDERS' EQUITY, then check the subtraction yourself.

The check is 126,521 − 72,210 = 54,311, in millions of dollars. The consolidated total includes noncontrolling interests and preferred stock. It cannot simply be divided by common shares and called common book value per share, much less intrinsic value. This is a reading exercise, not a P&G valuation; no current share price is used.

For the operating side of the story, revisit our beginner income-statement article. It examines revenue and expenses; this article separates accounting amounts, asset-sale assumptions, and a market quote.

Two quick checks before you research a stock

Question 1: Qinghe's share count is unchanged, but the quote drops from $6.50 to $4.00. Recorded assets and liabilities have not changed. What are market cap and book equity now? Does trading below book value alone establish a buying opportunity?

Question 2: In a separate buyback scenario, Qinghe uses company funds to repurchase shares from willing sellers. You keep your shares. Do you directly receive the repurchase proceeds? Now return to the earlier one-year model with no buybacks: its $660 million final equity payment is already net of every obligation. Should another $300 million be deducted?

Answers: Market cap is $4.00 × 100 million = $400 million, while book equity remains 800 − 300 = $500 million. That gap alone does not establish a bargain; achievable asset proceeds and future cash still need investigation. For Question 2, a nonselling holder does not directly receive the repurchase proceeds. Deducting obligations again from the already-net payment would double-count them, and a change in ownership percentage alone does not prove a wealth increase.

Your research note can now identify the share rights, the dates of the price and share count, whose equity is being measured, and the assumptions behind asset proceeds and future shareholder cash. Label reported facts, your calculations, and your forecasts separately. That makes a valuation something another reader can examine.

Disclaimer and attribution: This is general financial education, not a stock recommendation or personal investment, tax, or legal advice. Common stock can lose its entire value, and estimates guarantee neither a market price nor a return. Qinghe is a hypothetical teaching scenario; P&G is a historical filing exercise. Further learning: Damodaran's public valuation course. Reference does not imply NYU or Damodaran authorization, partnership, or endorsement; course slides are not reproduced. Sources and calculations checked October 5, 2026.