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In the United States, the Financial Accounting Standards Board (FASB) requires EPS information for the four major categories of the income statement: continuing operations, discontinued operations, extraordinary items, and net income.
Preferred stock rights have precedence over common stock. Therefore, dividends on preferred shares are subtracted before calculating the EPS. When preferred shares are cumulative,[jargon] annual dividends are deducted whether or not they have been declared. Dividends in arrears are not relevant when calculating EPS.
- Basic formula
- Earnings per share = profit − preferred dividends/weighted average common shares
- Net income formula
- Earnings per share = net income − preferred dividends/average common shares
- Continuing operations formula
- Earnings per share = income from continuing operations − preferred dividends/weighted average common shares
Diluted earnings per share (diluted EPS) is a company's earnings per share calculated using fully diluted shares outstanding (i.e. including the impact of stock option grants and convertible bonds). Diluted EPS indicates a "worst case" scenario, one that reflects the issuance of stock for all outstanding options, warrants and convertible securities that would reduce earnings per share.
Calculations of diluted EPS vary. Morningstar reports diluted EPS "Earnings/Share $", which is net income minus preferred stock dividends divided by the weighted average of common stock shares outstanding over the past year; this is adjusted for dilutive shares. Some data sources may simplify this calculation by using the number of shares outstanding at the end of a reporting period. The methods of simplifying EPS calculations and eliminating inappropriate assumptions include replacing primary EPS with basic EPS, eliminating the treasury stock method of accounting from fully diluted EPS, eliminating the three-percent test for dual presentation, and providing information on individual dilative securities.
Calculations of diluted EPS under U.S. GAAP are described under Statement No. 128 of the Financial Accounting Standards Board (FAS No. 128). The objective of diluted EPS is to measure the performance of a company over the reporting period taking into account the dilutive effect of potential common stock that could be issued by the company. To compute diluted EPS, both the denominator (outstanding shares) and the numerator (earnings) may need to be adjusted.
Diluted shares: To calculate the total number of shares used in the calculation, FASB prescribes using the treasury method to calculate the dilutive effect of any instruments that could result in the issuance of shares, including:
- Stock options
- Convertible preferred stock
- Convertible bonds
- Share-based payment arrangements
- Written put options
- Contingently issuable shares
Earnings: The numerator used in calculating diluted EPS is adjusted to take into account the impact that the conversion of any securities would have on earnings. For example, interest would be added back to earnings to reflect the conversion of any outstanding convertible bonds, preferred dividends would be added back to reflect the conversion of convertible preferred stock, and any impact of these changes on other financial items, such as royalties and taxes, would also be adjusted.
International financial reporting standards
Under International Financial Reporting Standards, diluted earnings per share is calculated by adjusting the earnings and number of shares for the effects of dilutive options and other dilutive potential common stock. Dilutive potential common stock includes:
- convertible debt
- convertible preferred stock
- share warrants
- share options
- share rights
- Employee stock purchase plans
- contractual rights to purchase shares
- contingent issuance contracts or agreement
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- "Earnings Per Share (EPS)". Investopedia ULC. Retrieved 2008-03-02.
- R. David Jr., Mautz. "Relieving the burden of EPS reporting: some practical suggestions. (earnings per share)". The CPA Journal.
- "FAS Statement No. 128". FASB. Retrieved 2013-02-18.
- Nalurita, Febria. "IMPACT OF EPS ON MARKET PRICES AND MARKET RATIO".
- "Summaries of International Financial Reporting Standards: IAS33 Earnings per share". Deloitte Touche Tohmatsu. 2008. Retrieved 2008-03-02.