Financial Glossary
Warrant (Finance)
A warrant in finance is a security that gives the holder the right, but not the obligation, to purchase shares of a company's stock at a specified price (the exercise price or strike price) before a specified expiration date. Warrants are typically issued by the company itself, unlike options which are contracts between third parties. They are commonly attached to debt instruments or issued in venture and private-equity deals as sweeteners, and they dilute existing shareholders when exercised because new shares are issued.
Problem & Application
Warrants create ongoing cap table complexity that is easy to underestimate at issuance. A startup that attaches warrants to a convertible note may not think about the dilution impact until a Series A negotiation, when the fully diluted share count suddenly looks much larger to new investors than the founders expected. For PE-backed portfolio companies and businesses with investor bridge notes, failing to track outstanding warrants -- including exercise prices and expiration schedules -- leads to incorrect equity calculations and surprises during liquidity events. Accounting treatment also varies depending on whether warrants are classified as equity or liability instruments.
In Short
Warrants are often treated as an afterthought until a fundraise or exit forces a reckoning with dilution. Maintain your cap table current with every issuance so there are no surprises at the worst possible moment.