What it means
The word basic is doing specific work here, distinguishing this figure from diluted earnings per share. Basic counts only the ordinary shares that existed, weighted by how long they existed, while diluted assumes every option, warrant and convertible instrument turns into shares.
Reporting standards require both figures to be shown together for exactly that reason. A company with a heavy share option scheme can post a strong basic EPS while the diluted figure tells existing shareholders how much of that profit will be shared out once the options are exercised.
Getting the weighted average right is where most of the technical work sits. Shares issued during the year count only for the months they were outstanding, shares bought back reduce the average from the date of purchase, and events such as bonus issues or share splits are applied retrospectively to every period presented.
In practice, basic EPS drives more behaviour than almost any other reported number. It anchors analyst forecasts, it is the figure that beats or misses expectations on results day, and it frequently sits inside executive pay targets and loan covenants.
The nuance worth remembering is that basic EPS is an accounting output, not a cash figure. Non cash items such as asset write downs, revaluations and share based payment charges all run through it, so a company can report weak basic EPS while generating perfectly healthy cash.
In practice
Real-world examples.
Example
A logistics company announces basic EPS of $1.24 against a market expectation of $1.30 and the share price falls despite record revenue. The miss came from a one off restructuring charge, which investors then adjust for when setting their forecasts for next year.
Example
A technology business reports basic EPS of $0.90 and diluted EPS of $0.72, a gap driven by a large employee option pool. New investors focus on the diluted figure because it reflects the ownership they will actually end up with.
Example
A brewery carries out a three for one share split partway through the year. Prior year basic EPS is restated downwards to keep the comparison meaningful, so the trend line is not broken by a change that gave shareholders nothing new.
Think of it
“Basic EPS uses current shares only-simpler earnings per share.
Formula
Calculation
Basic EPS = profit attributable to ordinary shareholders / weighted average number of ordinary shares in issue
A retailer starts the financial year with 10,000,000 ordinary shares and issues a further 4,000,000 on 1 October, three months before the year end. The weighted average is 10,000,000 + (4,000,000 x 3/12) = 10,000,000 + 1,000,000 = 11,000,000 shares.
Profit attributable to ordinary shareholders was $8,800,000, so basic EPS is $8,800,000 / 11,000,000 = $0.80 per share. Using the year end count of 14,000,000 instead would have given $8,800,000 / 14,000,000 = roughly $0.63, understating the year's performance by penalising shares that were only in issue for a quarter of it.Case study
Seen in the real world.
This is an illustrative and entirely fictional case. Delwyn Analytics, an invented software company, listed midway through its financial year and reported basic EPS of $0.44 in its first annual results. Several commentators calculated a much lower figure using the post listing share count and accused the company of flattering its numbers.
The fictional finance director published a short note showing the weighting month by month, explaining that the new shares had been in issue for only five months and had contributed capital for only part of the year's earnings. Once readers could see the workings, the criticism moved on to a fairer question about how quickly the new capital would generate a return.
Delwyn kept publishing the weighted average calculation alongside its results from then on. The invented company found that showing the arithmetic cost half a page and removed an argument that had otherwise resurfaced every reporting season.
Watch out
Common mistakes.
- Quoting basic EPS when the audience really needs diluted, particularly at companies with large option or convertible programmes.
- Using the closing share count rather than the weighted average, which misstates any year involving an issue or buyback.
- Reading basic EPS as cash earned per share, when it includes non cash charges and gains that never touch the bank account.
Questions
People also ask.
Is basic EPS ever higher than diluted EPS?
Almost always, because dilution adds shares to the denominator, and the two are equal only when a company has no potential shares outstanding.
Why is prior year EPS sometimes restated?
Because share splits and bonus issues change the share count without changing economic ownership, so past figures are adjusted to keep the comparison fair.
Does a private company need to calculate basic EPS?
It is not usually required to report it, though owners preparing for a sale or a funding round often calculate it because buyers think in per share terms.
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