Dilution
Dilution is the reduction in an existing owner's percentage of a company when new shares are issued to raise capital.
Dilution happens whenever a company creates and sells new shares. If you owned 40 percent of a business and it issues more stock to new investors, your slice of the total shrinks even though the number of shares you hold has not changed. Each funding round, stock option grant, or conversion of a note into equity can dilute existing owners. The hope is that the capital raised grows the company enough that a smaller percentage is worth more in absolute terms than the larger percentage was before.
Founders feel dilution most acutely across multiple rounds of equity financing, where ownership can drop steadily over time. Understanding it matters when weighing whether to raise equity at all. Selling more ownership brings in cash but reduces control and the founder's share of any eventual payout. This is one reason many owners prefer debt for needs they can repay from revenue, since a term loan or line of credit does not touch the ownership table.
Common questions
Is dilution always bad for founders?
Not necessarily. If the new capital grows the company enough, a smaller percentage can be worth far more than a larger percentage was beforehand.
Can I raise money without diluting ownership?
Yes. Debt financing such as a term loan or line of credit brings in capital without selling shares, so it does not dilute your ownership.
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