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Dilution

A reduction in an existing holder's percentage ownership or related economic interest when the share base changes.

Search terms: Equity dilution ownership percentage

A business example

A founder owns all 1,000 existing ordinary shares. An investor receives 250 new shares with the same assumed economic rights.

Worked calculationFictional business scenario
  1. Before issue

    The founder holds 1,000 of 1,000 shares: 100%.

  2. After issue

    There are 1,250 shares in total.

  3. New percentage

    1,000 ÷ 1,250 = 80% for the founder; the investor holds 20%.

What this shows

The founder still owns 1,000 shares. The percentage fell because the denominator increased, not because 250 founder shares were sold.

What it is often confused with

A lower percentage does not alone show a lower rupee value; pricing and rights also matter.

What to look at in your business

Compare the capital table before and after the proposed transaction.

Context and further reading

This entry explains the business term. The related guide below provides the next layer of context; any applicable legal test depends on the transaction and relevant period.

Fundraising, mergers and acquisitions →

Related terms

Share capital

Capital associated with the shares of a company; authorised, issued, subscribed and paid-up amounts describe different stages or limits.

Capital table

A record of ownership and securities, supported by the underlying issue and transfer documents.

Valuation

An estimate of value for a defined purpose, date and basis using specified assumptions.