Understanding the 5 Types of Earnings Per Share (EPS)

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Earnings per share (EPS) is a company’s profit divided by its common shares, but “profit” and “shares” can each be defined in more than one way, so the same company can show several EPS figures for one quarter. The five types usually discussed are reported (GAAP) EPS, ongoing or pro forma EPS, carrying value or book value EPS, retained EPS and cash EPS. GAAP EPS is the figure a U.S. public company must report in its SEC filings. The other four adjust the earnings figure, replace it with a balance sheet or cash flow number, or track what the company keeps. Each can be computed on a basic or a diluted share count.

The basic formula and what changes between versions

The core calculation is simple:

EPS = earnings available to common shareholders ÷ common shares outstanding

Under GAAP, the numerator is net income minus any preferred dividends, because preferred shareholders have a prior claim on profits. The denominator is the weighted average number of common shares outstanding during the period, not the count on the last day. A company that issued many new shares midway through the year counts them only for the months they existed.

Every EPS variant changes one side of this fraction. Pro forma EPS changes the earnings. Cash EPS swaps earnings for cash flow. Book value EPS swaps earnings for equity. Diluted EPS changes the share count. Before comparing two EPS numbers, whether across companies, quarters or headlines, confirm both were built the same way.

Reported EPS (GAAP EPS)

GAAP EPS is earnings per share calculated under U.S. generally accepted accounting principles and presented on the face of the income statement in a company’s 10-Q and 10-K filings. Public companies must show both basic and diluted GAAP EPS. When a press release or data service lists “EPS” without a qualifier, GAAP EPS is usually the figure in the filed financial statements.

Its strength is consistency. The rules for what goes into net income are set by accounting standards, not chosen by each company, so GAAP EPS is the most comparable figure across firms.

Its weakness is that it captures everything, including events that will not repeat. Some examples:

• A one-time gain. If a company sells a subsidiary or a large piece of equipment for more than its book value, the gain flows into net income. GAAP EPS for that quarter can jump even though the ongoing business did not improve.
• A one-time charge. A large write-down of goodwill, a lawsuit settlement or restructuring costs can sink GAAP EPS in a quarter when operations were healthy.
• Classification choices. Within GAAP, management still makes judgments about estimates, reserves and how items are labeled.

Ongoing or pro forma EPS (adjusted EPS)

Ongoing EPS, also called pro forma, adjusted or non-GAAP EPS, starts from GAAP net income and removes items management considers unusual or non-recurring, on the reasoning that core recurring earnings are a better guide to future EPS than a total that includes one-off events.

The term “pro forma” signals that assumptions were applied. A common legitimate use: when a company sells a large division, it can present historical results without that division’s revenue and expenses, so past and current periods compare like for like.

Typical adjustments include:

• Restructuring and severance costs
• Gains or losses on asset sales
• Impairment charges
• Acquisition-related costs and amortization of acquired intangibles
• Stock-based compensation (a frequently debated exclusion, because it is a recurring cost of paying employees)

The concern is that management decides what to exclude, and expenses are almost always the items removed. If “non-recurring” charges appear year after year, they are part of the cost of running the business, and excluding them overstates sustainable earnings.

Adjusted vs. GAAP EPS. SEC rules (Regulation G, and Item 10(e) of Regulation S-K for filed documents) require companies that publish non-GAAP measures to reconcile them to the most directly comparable GAAP measure. In filings, the GAAP figure must be presented with equal or greater prominence. That reconciliation table, usually near the end of an earnings release, lists every adjustment line by line. A persistent, widening gap between adjusted and GAAP EPS is worth investigating.

Carrying value or book value EPS

Carrying value per share, better known as book value per share (BVPS), measures the equity attributable to each common share:

BVPS = (total shareholders’ equity − preferred equity) ÷ common shares outstanding

Despite the “EPS” label, this is a balance sheet measure: a snapshot of net assets at one date, not profit over a period. It is most useful as a trend. Rising BVPS over several years suggests management is building shareholder equity through retained profits rather than eroding it through losses, write-downs or value-destroying share issuance.

BVPS is often described as what a share would be worth if the company sold all its assets and paid off all liabilities, but that is an approximation. Assets are carried at historical cost less depreciation and may sell for more or much less in a real liquidation. Intangibles such as brands, software and customer relationships are often missing from book value, which is one reason many asset-light companies trade far above it.

Retained EPS

Retained EPS shows how much profit per share stays in the company instead of being paid out as dividends. The calculation, as typically presented:

Retained EPS = (net earnings + existing retained earnings − dividends paid) ÷ shares outstanding

Retained earnings are the accumulated profits a company has kept since inception, shown under stockholders’ equity on the balance sheet. Each period, net income is added, dividends are subtracted, and the ending balance carries forward. A company with cumulative losses larger than its cumulative profits has negative retained earnings (an accumulated deficit), which carries forward the same way.

Companies keep earnings to pay down debt, fund expansion, make acquisitions, buy back stock or hold a reserve. Tracking retained EPS over time, alongside what the company actually did with the money, shows whether retained profits are producing growth or simply accumulating.

Cash EPS

Cash EPS replaces net income with operating cash flow:

Cash EPS = operating cash flow ÷ diluted shares outstanding

Net income is built on accrual accounting, which involves estimates for depreciation, revenue recognition, reserves and other items. Operating cash flow records cash actually generated by the business, so it is harder to influence through accounting choices.

A hypothetical comparison shows why the gap matters:

Company A’s profits are backed by twice as much cash as it reports in earnings, perhaps because of large non-cash depreciation charges. Company B collects only half its reported earnings in cash, which can point to rising unpaid receivables, inventory buildup or aggressive revenue recognition. A persistent pattern of GAAP EPS well above cash EPS is one of the more useful warning signs in earnings analysis.

Basic vs. diluted EPS: the share count side

Any of the earnings measures above can be divided by two different share counts.

• Basic EPS (also called primary or standard EPS) uses the weighted average of shares actually issued and held by investors.
• Diluted EPS adds the shares that would exist if dilutive securities, such as employee stock options, warrants, restricted stock and convertible bonds or preferred stock, were converted into common stock.

Under GAAP, options and warrants are generally counted using the treasury stock method, which assumes the exercise proceeds are used to buy back shares at the average market price. Convertibles use the if-converted method. Securities that would increase EPS if converted (antidilutive securities, such as options with an exercise price above the market price) are left out.

Because the dilutive share count depends partly on the share price, it can change from quarter to quarter. When a company has no options, warrants or convertibles outstanding, basic and diluted EPS are identical.

Diluted EPS is the more conservative number and the one analysts usually prefer, since it reflects the claims that could eventually share in profits. Companies sometimes emphasize whichever version looks better.

A worked example across the five types

All figures below are hypothetical, chosen to show the mechanics.

A company reports for the year:

• Net income: $120 million, including a $20 million gain from selling a factory
• Preferred dividends: none
• Weighted average basic shares: 100 million; diluted shares: 105 million
• Operating cash flow: $140 million
• Shareholders’ equity at year end: $900 million; shares outstanding at year end: 100 million
• Retained earnings at the start of the year: $300 million; common dividends paid: $40 million

The results:

1. GAAP EPS (basic): $120M ÷ 100M = $1.20. Diluted: $120M ÷ 105M = $1.14.
2. Pro forma EPS (diluted): removing the $20M gain (ignoring tax effects for simplicity) gives $100M ÷ 105M = $0.95. Core operations earned noticeably less than the GAAP headline.
3. Book value per share: $900M ÷ 100M = $9.00.
4. Retained EPS: ($120M + $300M − $40M) ÷ 100M = $3.80.
5. Cash EPS: $140M ÷ 105M = $1.33, above GAAP EPS, which suggests the reported profit is backed by cash.

In practice, the factory gain would be removed net of the tax recorded on it, so the pro forma figure would differ somewhat. One set of financial statements yields five defensible numbers that answer different questions.

How to read EPS

What it tells you. Tracked across periods, EPS shows whether earnings are growing or shrinking; compared with peers in the same industry, it shows relative profitability. It is one input in fundamental analysis, alongside revenue growth, margins, debt and cash flow.

Is higher better? Positive and rising EPS is generally a good sign, but there is no universal “good” level, because a company with fewer shares outstanding will show a higher EPS on the same profit. Compare a company with its own history and with direct competitors. Share buybacks also lift EPS by reducing the share count even if net income is flat, so read EPS growth alongside net income growth.

Connection to the P/E ratio. The price-to-earnings ratio divides the share price by EPS: a $50 stock with $2.50 of EPS trades at 20 times earnings. A high P/E often reflects expected strong growth; a low P/E can signal an undervalued stock or a business with weak prospects. Which EPS goes into the ratio changes the result: a generous adjusted EPS lowers the P/E and makes a stock look cheaper than it would on GAAP figures. Trailing P/E uses the past twelve months of reported EPS, while forward P/E uses analyst estimates for the next year, which are usually based on adjusted earnings.

FAQs

The Bottom Line

Investors comparing earnings across companies, quarters or headlines need to know which EPS version and share count each figure uses. A widening gap between adjusted and GAAP EPS, or GAAP EPS running well above cash EPS, deserves a closer look. Reading EPS growth alongside net income growth, and comparing a company with its own history and direct competitors, gives a fairer picture than any single number.