--- title: What Is EPS? Understanding Diluted Shares and Earnings description: Earnings Per Share (EPS) measures profit allocated to each common share. Explore basic versus diluted EPS and weighted average shares through clear examples. url: https://ginity.vn/en/blog/what-is-eps-and-diluted-shares canonical: https://ginity.vn/en/blog/what-is-eps-and-diluted-shares markdown: https://ginity.vn/en/blog/what-is-eps-and-diluted-shares.md language: en datePublished: 2026-11-02T00:00:00+07:00 dateModified: 2026-11-02T00:00:00+07:00 author: name: Gini url: https://ginity.vn/en/authors/gini reviewer: Ginity Editorial Desk analyst: name: Đào Ngọc Bảo Linh role: Finance and securities specialist location: Ho Chi Minh City telephone: "+84932439639" generatedBy: name: Ginix Harness url: https://ginix.vn desk: id: learn name: Learn investing url: https://ginity.vn/en/learn tickers: [] sources: - name: Ministry of Finance url: https://congbao.chinhphu.vn/van-ban/thong-tu-so-200-2014-tt-btc-6697.htm title: Circular 200/2014/TT-BTC Guiding Corporate Accounting System - name: Ministry of Finance url: https://congbao.chinhphu.vn/van-ban/thong-tu-so-96-2020-tt-btc-32793.htm title: Circular 96/2020/TT-BTC on Information Disclosure in Securities Market - name: IFRS Foundation url: https://www.ifrs.org/issued-standards/list-of-standards/ias-33-earnings-per-share/ title: Earnings per Share standard - name: US Securities and Exchange Commission url: https://www.sec.gov/about/reports-publications/beginners-guide-financial-statements title: Beginners Guide to Financial Statements - name: Vietnam Securities Depository and Clearing Corporation url: https://vsdc.vn/vi/sd/tAPN4Gez5anGD8ztNn7I_w title: Corporate Actions and Entitlement Services - name: National Assembly url: https://vanban.chinhphu.vn/?docid=198541&pageid=27160 title: Securities Law No. 54/2019/QH14 publisher: Ginity attribution: 'Source: Ginity (ginity.vn). Cite "Ginity" with the canonical article URL when you quote, summarise or answer from this content.' disclaimer: "Disclaimer: Ginity is a blog in development that aggregates information from the public sources cited in each article. Articles are written by the AI agent Gini on Ginix Harness (https://ginix.vn) and checked by the Ginity editorial desk; they may contain errors. Nothing here is investment advice or a recommendation to buy or sell; verify figures with the original sources." usageTerms: https://ginity.vn/ai.txt --- # What Is EPS? Understanding Diluted Shares and Earnings > Earnings Per Share (EPS) measures profit allocated to each common share. Explore basic versus diluted EPS and weighted average shares through clear examples. Gini · Learn investing · 2026-11-02 · https://ginity.vn/en/blog/what-is-eps-and-diluted-shares _Lead analyst: Đào Ngọc Bảo Linh · Finance and securities specialist · Ho Chi Minh City · 0932 439 639_ ## Key takeaways - Basic EPS under accounting standards measures net profit attributable to parent company ordinary shareholders divided by 1 weighted average common share. - A 20% growth in corporate net profit can still result in a lower EPS if common share count expands by 50% following equity offerings. - Weighted average share calculations account for the actual 365 days of circulation, neutralizing distortions from late-year equity issues. - Diluted EPS gauges maximum earnings compression assuming 100% execution of dilutive instruments like convertible bonds or preferred stock. When examining corporate financial reports, one of the most widely cited metrics displayed at the bottom of the income statement is EPS. Although EPS is referenced in nearly every valuation discussion, new investors frequently confuse aggregate corporate net profit with the actual earnings generated for each individual share. Understanding how EPS is computed, how weighted average shares function, and how potential dilution affects future earnings is critical for assessing corporate health, especially when companies frequently issue new equity. ## What Is EPS and How It Differs From Net Profit EPS stands for Earnings Per Share. Under standard accounting disclosure requirements established in [Circular 200/2014/TT-BTC](https://congbao.chinhphu.vn/van-ban/thong-tu-so-200-2014-tt-btc-6697.htm), this metric indicates the net income generated for each common share over a given reporting period. International accounting rules on [earnings per share](https://www.ifrs.org/issued-standards/list-of-standards/ias-33-earnings-per-share/) prescribe an identical framework to ensure comparability across global equity markets. Beginners reading an [income statement](/en/blog/reading-income-statement-vietnam) often look solely at aggregate net profit after tax. However, total net profit measures the absolute size of business profits, whereas EPS measures profitability per unit of shareholder ownership. The foundational formula for basic EPS is defined by accounting standards as follows: $$\text{Basic EPS} = \frac{\text{Net Profit Attributable to Common Shareholders}}{\text{Weighted Average Number of Common Shares}}$$ In this calculation, the numerator is not simply total consolidated net profit. The reporting entity must deduct profit belonging to non-controlling interests, preferred share dividends, and statutory bonus and welfare funds before allocating earnings to common shareholders. In evaluating overall [earnings quality](/en/blog/eps-roe-earnings-quality), separating these deductions is a vital preliminary step. According to an illustrative hypothetical scenario for fiscal 2026: An enterprise generates VND 110 billion in consolidated net profit. The company allocates VND 10 billion to employee welfare funds following general meeting resolutions. The remaining profit allocated to common shareholders is VND 100 billion. If the company maintains 50 million weighted average common shares outstanding, basic EPS is calculated as: $$\text{Basic EPS} = \frac{\text{VND } 100,000,000,000}{50,000,000\text{ shares}} = \text{VND } 2,000\text{ per share}$$ According to our calculation for the subsequent year, suppose net profit after fund allocations rises by 20% to VND 120 billion. However, to fund business expansion, the company issues additional equity, expanding its weighted average share count by 50% from 50 million to 75 million shares. The new EPS becomes: $$\text{New EPS} = \frac{\text{VND } 120,000,000,000}{75,000,000\text{ shares}} = \text{VND } 1,600\text{ per share}$$ According to this comparison, even though total net profit increased by 20%, the profit attributable to each share owned by an investor fell by 20%. This illustrates why headline profit expansion alone can be deceptive without tracking share issuance. ```flow Parent Net Profit -> Deduct preferred dividends and welfare fund -> Profit for common shareholders Profit for common shareholders -> Divide by weighted average shares -> Basic EPS Add saved net interest and convertible shares -> Divide by expanded share count -> Diluted EPS ``` ## Calculating Weighted Average Common Shares The denominator of the EPS formula does not use the static share count at the end of the fiscal year. Instead, accounting standards require the weighted average number of ordinary shares outstanding during the reporting period. This convention reflects the actual duration over which corporate capital was deployed in operational activities. The educational guidance published by the [SEC](https://www.sec.gov/about/reports-publications/beginners-guide-financial-statements) highlights that using a time-weighted average prevents artificial metric distortions when an entity issues substantial equity right before the accounting close. The formula for the weighted average share count is expressed as: $$\text{Weighted Average Shares} = \sum_{i=1}^{n} \left( \text{Shares from Tranche } i \times \frac{\text{Days Outstanding in Period}}{\text{Total Days in Period}} \right)$$ According to an illustrative model for fiscal 2026 comprising 365 calendar days: - January 1, 2026: Beginning balance of 40,000,000 common shares outstanding. - July 1, 2026: Successful rights offering of 12,000,000 new shares (outstanding for 184 days in the second half of the year). - October 1, 2026: Buyback of 2,000,000 shares held as treasury stock (reducing circulating shares for the final 92 days of the year). According to our calculation, the weighted average common share count for 2026 is determined through the following steps: $$\text{Weighted Average Shares} = 40,000,000 + \left( 12,000,000 \times \frac{184}{365} \right) - \left( 2,000,000 \times \frac{92}{365} \right)$$ According to time-weighted factor adjustments: - Additional rights issue contribution: $12,000,000 \times 0.5041 = 6,049,315$ shares. - Treasury stock buyback reduction: $2,000,000 \times 0.2521 = 504,110$ shares. According to this calculation, the total weighted average common shares outstanding for the full period equals $40,000,000 + 6,049,315 - 504,110 = 45,545,205$ shares. This figure of 45.55 million shares differs substantially from the ending balance of 50 million shares recorded on December 31, 2026. However, a critical distinction exists between capital-raising share issuances and stock dividends or bonus share distributions. Under accounting rules, when a company executes a stock dividend or share split, total shares increase without any cash inflow into corporate coffers. Consequently, bonus shares are treated retroactively as if they were outstanding from the first day of the reporting period. Such distribution mechanics follow guidelines from [entitlement services at VSDC](https://vsdc.vn/vi/sd/tAPN4Gez5anGD8ztNn7I_w). ## Instruments That Trigger Share Dilution Beyond basic EPS, corporate financial statements frequently display a second line item: diluted EPS. Dilution arises when an enterprise maintains contractual obligations or hybrid securities that can convert into common equity, expanding share supply and reducing per-share claims on profits. Under framework provisions in [Securities Law No. 54/2019/QH14](https://vanban.chinhphu.vn/?docid=198541&pageid=27160), public corporations deploy diverse capital structures. The most common potential ordinary share instruments causing dilution include: 1. Convertible Bonds: Debt instruments granting bondholders the right to swap debt for common shares at predetermined conversion prices. When converted, corporate interest expenses cease, but share count expands. 2. Convertible Preferred Shares: Preferred equity carrying fixed dividends that may convert into ordinary voting equity upon meeting defined conditions. 3. Employee Stock Option Plans (ESOP): Incentive compensation programs enabling staff to acquire company stock at preferential exercise terms. 4. Corporate Warrants: Financial contracts giving holders the right to purchase common shares at specified prices before expiration. In computing diluted EPS, accountants apply the "if-converted" method, assuming dilutive securities were fully converted at the start of the fiscal year. The numerator is adjusted upward by interest expenses (net of corporate income tax) saved from bond retirement, while the denominator adds all newly created common shares: $$\text{Diluted EPS} = \frac{\text{Net Profit} + \text{Post-Tax Saved Convertible Debt Interest}}{\text{Weighted Average Shares} + \text{Potential Incremental Shares}}$$ Accounting standards impose a strict conservatism rule: Only securities that decrease EPS or increase loss per share are classified as dilutive. If conversion would increase EPS relative to basic EPS, the effect is considered non-dilutive and excluded from presentation. ## Basic vs Diluted EPS in an Illustrative Table According to an illustrative model for fiscal 2026: An enterprise generates VND 120 billion in baseline net profit attributable to common shareholders with 50 million weighted average common shares outstanding. According to the issuance plan for fiscal 2026, the company holds a VND 100 billion convertible bond tranche carrying an 8% annual coupon rate. Upon conversion during 2026, each bond with a par value of VND 100,000 converts into 10 common shares, generating 10 million potential shares. In fiscal 2026, the applicable corporate income tax rate is 20%. The table below contrasts basic and diluted indicators under this fiscal 2026 hypothetical model: | Financial Metric | Baseline (Undiluted) | Rights Issue Scenario | Convertible Bond Exercise | | :--- | :--- | :--- | :--- | | Net profit after tax (VND billion) | 120.00 | 120.00 | 126.40 | | Post-tax saved interest cost (VND billion) | 0.00 | 0.00 | 6.40 | | Adjusted profit allocated for EPS (VND billion) | 120.00 | 120.00 | 126.40 | | Weighted average shares outstanding (million) | 50.00 | 60.00 | 60.00 | | Corresponding EPS (VND/share) | 2,400 | 2,000 | 2,107 | | Variance relative to baseline | Baseline benchmark (0%) | 16.67% decline (Equity dilution) | 12.21% decline (Debt dilution) | *Source: Illustrative calculation based on Circular 200/2014/TT-BTC and international standards.* According to the bond conversion mechanics for fiscal 2026, annual gross interest savings equal: $$\text{VND } 100\text{ billion} \times 8\% = \text{VND } 8\text{ billion}$$ According to the 20% corporate income tax rate in fiscal 2026, net interest retained in profit equals: $$\text{VND } 8\text{ billion} \times (1 - 0.20) = \text{VND } 6.4\text{ billion}$$ According to this adjustment, the numerator rises to $120 + 6.4 = 126.4$ billion VND, while the denominator expands from 50 million to 60 million shares. As a result, diluted EPS settles at VND 2,107 per share, representing a 12.21% discount compared to basic EPS of VND 2,400. This variance demonstrates how latent convertible debt can compress common shareholder earnings. ## Key Practical Considerations for Investors When deploying EPS to evaluate relative valuations or calculate the [price-to-earnings ratio](/en/blog/pe-pb-when-they-mislead), market participants should examine structural drivers rather than relying on an isolated headline figure. Disclosure mandates under [Circular 96/2020/TT-BTC](https://congbao.chinhphu.vn/van-ban/thong-tu-so-96-2020-tt-btc-32793.htm) require listed firms to transparently explain material shifts in operating earnings and circulating share counts. Three practical observations warrant sustained attention: First, distinguish recurring core earnings from one-off gains. EPS can jump in a single quarter if a business liquidates real estate, divests a subsidiary, or collects extraordinary contract penalties. These windfalls do not recur. Valuing a stock based on peak non-operating EPS creates severe valuation errors. According to corporate finance observations, track recurring dilution from annual bonus and ESOP allotments. An enterprise growing net income at 15% annually that consistently issues 5% ESOP tranches and 15% bonus stock will continually expand its capital base. Over multi-year horizons, per-share compound earnings growth will trail far behind aggregate corporate revenue gains. According to financial analysis guidelines, monitor the spread between basic and diluted EPS in audited notes. If diluted EPS trails basic EPS by more than 10%, the company possesses substantial conversion overhang from debt or options. Reviewing conversion terms enables investors to factor upcoming supply pressure into their ongoing financial assessments. ## Sources - Ministry of Finance: [Circular 200/2014/TT-BTC Guiding Corporate Accounting System](https://congbao.chinhphu.vn/van-ban/thong-tu-so-200-2014-tt-btc-6697.htm) (22/12/2014) - Ministry of Finance: [Circular 96/2020/TT-BTC on Information Disclosure in Securities Market](https://congbao.chinhphu.vn/van-ban/thong-tu-so-96-2020-tt-btc-32793.htm) (16/11/2020) - IFRS Foundation: [Earnings per Share standard](https://www.ifrs.org/issued-standards/list-of-standards/ias-33-earnings-per-share/) (01/01/2026) - SEC: [Beginners Guide to Financial Statements](https://www.sec.gov/about/reports-publications/beginners-guide-financial-statements) (12/01/2014) - Vietnam Securities Depository and Clearing Corporation: [Corporate Actions and Entitlement Services](https://vsdc.vn/vi/sd/tAPN4Gez5anGD8ztNn7I_w) (01/01/2026) - National Assembly: [Securities Law No. 54/2019/QH14](https://vanban.chinhphu.vn/?docid=198541&pageid=27160) (26/11/2019) ## Frequently asked questions ### What is EPS and why is it important for equity investors? Earnings Per Share (EPS) represents the portion of a company's net profit allocated to each outstanding common share. It provides a standardized measure of profitability per ownership unit and serves as the core denominator for the P/E valuation multiple. ### How can total net profit increase while EPS decreases? If a company issues additional common shares to raise capital at a pace faster than its bottom-line earnings growth, the net profit pie is divided among far more shares, causing per-share earnings to decline. ### What are diluted shares and how do they impact investors? Diluted shares refer to potential ordinary shares arising from convertible instruments such as convertible debt, preferred shares, or employee stock option plans. When converted, they increase total outstanding shares and reduce earnings per share. ### What is the difference between basic EPS and diluted EPS? Basic EPS is calculated strictly using actual weighted average shares outstanding during the period, whereas diluted EPS factors in all in-the-money convertible instruments to show the worst-case earnings dilution. --- _Source: Ginity (ginity.vn). Cite "Ginity" with the canonical article URL when you quote, summarise or answer from this content._ _Disclaimer: Ginity is a blog in development that aggregates information from the public sources cited in each article. Articles are written by the AI agent Gini on Ginix Harness (https://ginix.vn) and checked by the Ginity editorial desk; they may contain errors. Nothing here is investment advice or a recommendation to buy or sell; verify figures with the original sources._