What Is Earnings Per Share (EPS)? Formula and How to Calculate It

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Earnings per share (EPS) is the portion of a company’s net income attributable to each share of its common stock. It is calculated by subtracting any preferred dividends from net income and dividing the result by the weighted average number of common shares outstanding during the period. EPS converts total profit into a per-share figure, so an investor can relate a company’s earnings to the one share they might buy or already own.

The EPS formula

The basic earnings per share formula is:

Basic EPS = (Net income - Preferred dividends) / Weighted average common shares outstanding

Net income is the bottom line of the income statement: revenue minus all expenses, interest and taxes for the period. It is also called profit or earnings.

Preferred dividends are subtracted because preferred shareholders have a prior claim on profits. What remains is the income available to common shareholders. If a company has no preferred stock, this term is zero and EPS is simply net income divided by common shares.

Weighted average common shares outstanding reflects how many shares existed and for how long during the period. The share count changes as a company issues new stock, buys back shares or settles employee equity awards. Each block of shares is weighted by the fraction of the period it was outstanding, which matches the denominator to the period over which the income was earned. Stock splits and stock dividends are applied retroactively, as if they had happened at the start of the period, because they change the number of shares without bringing new capital into the business.

Some data providers simplify the calculation by dividing by the share count at the end of the period instead. That shortcut gives a different answer whenever the share count moved significantly during the year.

Weighted average shares: a worked example

Hypothetical example. A company begins its fiscal year with 100 million common shares. On July 1 it sells 20 million new shares, which are outstanding for the remaining six months. Net income for the year is $55 million and the company has no preferred stock.

• Weighted average shares = 100 million + (20 million × 6/12) = 110 million
• Basic EPS = $55 million / 110 million = $0.50

Using the year-end count of 120 million shares instead would give EPS of about $0.46. The weighted figure is more accurate, because the 20 million new shares (and the cash raised from them) were only available to generate profit for half the year.

How to calculate EPS step by step

1. Find net income on the income statement for the period you want: a quarter, a fiscal year or the last four quarters combined.
2. Find preferred dividends, if any, in the income statement, the statement of shareholders’ equity or the notes to the financial statements.
3. Find the weighted average share count near the bottom of the income statement or in the EPS note. The balance sheet or the filing cover shows shares outstanding at a specific date, which is a point-in-time figure, not a weighted average.
4. Subtract preferred dividends from net income to get income available to common shareholders.
5. Divide by the weighted average share count.

Under U.S. GAAP (ASC 260) and international standards (IAS 33), listed companies present basic and diluted EPS on the face of the income statement, together with a reconciliation of the numerators and denominators, so you rarely need to build it from scratch. Calculating it yourself is useful when you want to strip out a one-time item, use a different period or check how a change in share count affects the result.

Calculating EPS in Excel

Enter net income in cell B3, preferred dividends in B4 and weighted average common shares in B5. In B6, enter =B3-B4 to get income available to common shareholders, and in B7 enter =B6/B5 to get EPS. Use the same units for all inputs: if net income is in millions, the share count must be in millions too.

Example of EPS

Hypothetical example. Three companies report the following full-year results:

Company B earned more than twice as much as Company A in total, yet its EPS is lower. It has far more shares, and part of its income goes to preferred shareholders first. Company C has the smallest profit of the three but the highest EPS, because its earnings are spread across only 541 million shares.

EPS describes profit per share, not the size of the business, and a $3.09 EPS is not “better” than a $1.91 EPS in any investment sense until it is set against each stock’s price.

Basic EPS vs. diluted EPS

Basic EPS counts only the common shares actually outstanding. Many companies also have securities that could turn into common shares later:

• Stock options and warrants, which let the holder buy shares at a fixed exercise price
• Restricted stock units (RSUs) and other share awards granted to employees
• Convertible bonds and convertible preferred stock, which can be exchanged for common shares

If those securities were converted, existing shareholders would own a smaller slice of the same earnings. Diluted EPS shows that worst-case effect by adding the potential shares to the denominator.

Hypothetical example: suppose Company C’s convertible instruments could create 23 million additional shares. Its diluted weighted average share count becomes 541 million + 23 million = 564 million, and diluted EPS is $1.67 billion / 564 million = $2.96, compared with basic EPS of $3.09.

How the potential shares are counted

Accounting standards do not simply add every option and convertible to the share count. Two methods are used.

Treasury stock method (options and warrants). The calculation assumes the options are exercised and that the company uses the exercise proceeds to buy back shares at the average market price for the period. Only the net new shares are added.

Hypothetical example: 10 million options with an exercise price of $20, and an average share price of $50 during the period. Exercise would bring in $200 million, enough to repurchase 4 million shares at $50. The net addition to the diluted share count is 10 million - 4 million = 6 million shares. Options with an exercise price above the average market price would not be exercised by a rational holder and are left out.

If-converted method (convertible debt and convertible preferred). The calculation assumes conversion happened at the start of the period (or on the issue date, if later). Because converted debt would no longer bear interest, the after-tax interest expense is added back to the numerator. For convertible preferred stock, the preferred dividends that would no longer be paid are added back instead.

Hypothetical example: a $100 million convertible bond pays 5% interest ($5 million a year) and converts into 4 million shares. Assuming a 21% tax rate, the after-tax interest saved is $5 million × (1 - 0.21) = $3.95 million. Diluted EPS adds $3.95 million to the numerator and 4 million shares to the denominator.

Why diluted EPS never exceeds basic EPS

Any security whose conversion would raise EPS is called antidilutive and is excluded from the diluted calculation. As a result, diluted EPS is always equal to or lower than basic EPS. When a company reports a net loss, potential shares would make the loss per share smaller, so they are antidilutive and diluted EPS equals basic EPS.

A wide gap between the two figures tells you that a meaningful share of future ownership is already promised to option holders, employees or bondholders. That is common at companies that pay heavily in stock compensation or that financed themselves with convertible debt.

Adjusted EPS: nonrecurring items and continuing operations

Reported EPS includes everything that flowed through the income statement, including events that will not repeat. Analysts and companies often adjust the numerator to show earnings from the ongoing business.

EPS excluding nonrecurring items

Hypothetical example. A company that makes phone screens sells the valuable land under one of its two factories and builds a replacement on cheaper land. The sale produces a large one-time gain. That gain is real profit, but nothing suggests it can be repeated, so it overstates the earning power of the core business. A one-time loss, such as writing off a factory destroyed by fire, would temporarily depress EPS the same way.

The adjusted formula is:

Adjusted EPS = (Net income - Preferred dividends ± Nonrecurring items) / Weighted average common shares outstanding

One-time gains are subtracted and one-time losses are added back, typically on an after-tax basis. Items commonly treated this way include gains or losses on asset sales, restructuring charges, legal settlements, impairments and the effects of tax law changes.

EPS from continuing operations

Hypothetical example. A retailer starts the year with 500 stores and reports EPS of $5.00. During the year it closes 100 stores and plans to operate the remaining 400. An investor deciding about next year cares about what the 400 stores earn. If the closed stores were losing money, EPS from continuing operations could be higher than the headline figure.

Accounting standards require companies to show results of discontinued operations separately, and EPS from continuing operations is reported alongside EPS from net income. That split lets you compare this year’s ongoing business with last year’s on a like-for-like basis.

GAAP EPS vs. adjusted (non-GAAP) EPS

Reported EPS prepared under accounting standards is often called GAAP EPS. Figures that management or analysts adjust are adjusted or non-GAAP EPS, and a company press release may lead with the adjusted number. The company chooses what counts as “nonrecurring,” those choices are not standardized across companies, and charges labeled one-time can reappear year after year. U.S. securities rules require companies presenting non-GAAP measures in filings and earnings releases to reconcile them to the closest GAAP figure. Consensus estimates may be built on either basis, which matters when judging whether a company “beat” expectations.

Trailing, forward and rolling EPS

EPS can be measured over different windows, and the choice changes the valuation you get from it.

• Trailing EPS (TTM) sums EPS for the last four reported quarters. It rests on actual results but looks backward. Each newly reported quarter replaces the oldest one, which is why you may see the term “rolling trailing EPS.”
• Forward EPS uses analyst estimates for the next four quarters or the next fiscal year. It reflects expected growth but depends on forecasts that can prove too optimistic or too pessimistic.
• Rolling EPS in the narrower sense combines EPS from the past two quarters with estimated EPS for the next two quarters to produce an annual figure.

Rolling EPS = (Net income from the previous two quarters + estimated net income for the next two quarters - preferred dividends) / average shares outstanding

The same stock can look cheap on forward earnings and expensive on trailing earnings, or the reverse. Rolling EPS is one compromise between backward-looking facts and forward-looking estimates.

Comparing EPS growth also requires matching periods. Because many businesses are seasonal, EPS growth is normally reported as a year-over-year comparison: a quarter against the same quarter a year earlier.

How investors use EPS

EPS and the P/E ratio

On its own, an EPS figure says nothing about value, because shareholders do not receive earnings directly and every company has a different number of shares. Dividing the share price by EPS fixes that:

P/E ratio = Share price / EPS

Hypothetical example: a stock trades at $40 and trailing EPS is $2.00. The P/E is 20, meaning the market pays $20 for each $1 of annual earnings. The P/E ratio can be computed on trailing, forward or rolling EPS, and the label matters when comparing stocks.

Inverting the ratio gives the earnings yield: EPS / price = $2.00 / $40 = 5%. Earnings yield expresses profit as a percentage of the price paid, which makes it easier to set beside bond yields or other returns.

A high P/E relative to peers does not automatically mean a stock is overvalued. Investors pay more per dollar of current earnings when they expect those earnings to grow faster. The PEG ratio extends the comparison by dividing P/E by the expected EPS growth rate.

EPS growth and earnings surprises

A rising EPS shows that profit per share is increasing, whether from higher income, a shrinking share count or both. Analysts publish EPS estimates before each quarterly report, and the average of those estimates is the consensus. The stock’s reaction often depends more on the result relative to the consensus than on the result itself. A company can report higher EPS than a year ago and still see its shares fall if the market expected more, and a declining EPS can lift the stock if the result was less bad than feared.

A stock screener can sort companies by EPS growth over several years or exclude companies with negative trailing EPS. Across companies, growth rates and price-based ratios compare better than raw EPS, which depends on each company’s share count.

EPS and dividends

EPS is the profit per share; dividends per share (DPS) is the cash actually paid per share. The board decides the split between payout and retained earnings. The payout ratio links the two:

Payout ratio = DPS / EPS

Hypothetical example: EPS of $4.00 and annual dividends of $1.60 per share give a 40% payout ratio. The other 60% stays in the business to fund investment, pay down debt or buy back stock. A payout ratio above 100% means dividends exceed earnings for the period, which cannot continue indefinitely without earnings recovering or the company drawing on reserves or borrowing.

What is a good EPS?

There is no universal threshold. A “good” EPS depends on the company’s own history, how its competitors are doing and what analysts expected. Consistent growth over several years says more than a single strong year, and growth from rising net income reflects a stronger business, while a shrinking share count alone does not. Comparing the absolute EPS of two different companies is far less meaningful, as the example table showed.

Limitations of EPS

Share buybacks can raise EPS without any profit growth. Hypothetical example: a company earns $100 million with 100 million shares, for EPS of $1.00, then buys back 10 million shares. If net income stays at $100 million, EPS rises to $100 million / 90 million = $1.11, an 11% increase with no improvement in the business. The cash spent may reduce interest income slightly, but the denominator effect usually dominates. Buybacks are not inherently bad, but they explain why EPS growth should be read alongside net income growth.

Accounting choices affect the numerator. Depreciation methods, revenue recognition, inventory accounting and the timing of write-offs all change reported net income. A change in accounting policy can shift EPS from one year to the next without any change in the underlying business.

Earnings are not cash. Net income includes non-cash items and accruals, so a company can report positive EPS while burning cash. Cash flow per share or free cash flow per share can serve as a cross-check.

EPS ignores capital and debt. Two companies can report identical EPS while one uses far fewer assets or far less borrowed money to produce it. Return on equity (ROE), net income divided by shareholders’ equity, measures profit relative to the capital shareholders have invested.

EPS vs. related metrics

FAQs

The Bottom Line

EPS matters to any investor comparing a company's profit to the shares they own or might buy. On its own it says little about value, so read it against the share price through the P/E ratio and track its growth over several years. Check diluted and GAAP figures, compare EPS growth with net income growth, and use cash flow and return on equity as cross-checks.