What is Dilution?
Ulush suyulishi (dilution)
In short
When a company issues new shares (offerings, stock-based pay, conversions), existing shareholders' stake and EPS shrink.
Also known as: stock-based compensation, SBC
Dilution is the shrinking of existing shareholders' stake and of profit per share (EPS) when a company issues new shares. The pie is the same, but it is cut into more slices.
How it happens
- Share offerings (secondary offerings) — the company sells new shares to raise money.
- Stock-based compensation (SBC) — paying employees in shares, very common at tech companies, nudges the share count up every year.
- Conversions — convertible bonds or preferred shares turn into common stock.
- Stock-funded acquisitions — buying another company with newly issued shares.
Is it always bad?
No. If the money raised goes into projects that add more value than the dilution costs, the result can be positive. But frequent share issuance by a company that keeps losing money — especially small caps and penny stocks — is a classic warning sign.
How to track it
In the reports, look at "diluted shares outstanding" and how it changes from year to year. Buybacks can partly or fully offset dilution.
Net income is $20m in all four cases. When the share count shrinks (buyback) EPS rises; when it grows (dilution) each share gets less profit.
At the IPO the company sold 20M new shares at $25 and raised $500M. The founders kept the same number of shares, but their stake fell from 62.5% to 50% — that is dilution.
Example
You own 1,000 shares of a hypothetical company with 10 million shares in total → your stake is 0.01%.
The company issues 2 million new shares, 12 million in total:
- Your stake: 1,000 ÷ 12M ≈ 0.0083%
- With net income unchanged at $30 million, EPS drops from $30M ÷ 10M = $3.00 to $30M ÷ 12M = $2.50 (−16.7%).
Slow dilution: if stock-based pay grows the share count 2% a year, after 5 years 1.02⁵ ≈ 1.104 — about 10.4% more shares. Total profit has to grow at least that much just for per-share profit to keep up.
Mistakes and tips
Check the 3–5 year trend in share count — 2–3% dilution a year adds up over time.
"Adjusted" earnings often exclude SBC; treat it as a real cost.
When a small company announces a large offering, the price can drop sharply that day — keep an eye on such news.
Frequently asked questions
- Does dilution lower the stock price?
- Often yes, especially with a large surprise offering, because profit per share falls. But if the money raised is used well, the effect can be offset over the long run.
- What is the difference between basic and diluted EPS?
- Basic EPS counts only the shares outstanding now. Diluted EPS also includes what would happen if options and convertibles turned into shares, so it is usually a bit lower.
Learn it in the Academy
This term is covered with hands-on examples and a quiz in these lessons of the interactive course.
- Fundamental analysis basicsThe three financial statements, reading the income statement line by line, margins, EPS, share count, ROE/ROIC and a business-quality checklist.Open lesson · 12 min
- Financial health: balance sheet, debt and FCFReading the balance sheet, liquidity and leverage, the cash flow statement, FCF and cash conversion, dilution, red flags and the 30% halal screening ratios.Open lesson · 12 min
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