Qualified institutional buyer
Also called: QIB
ELI5
A large institution eligible for particular private securities markets.
Used in conversation
“The notes are offered to qualified institutional buyers.”
Definition
A large institutional investor meeting US securities-law criteria for certain restricted offerings.
Here “Qualified institutional buyer” means: A large institutional investor meeting US securities-law criteria for certain restricted offerings.
Pitch context
You will see “Qualified institutional buyer” in fundraising decks, data rooms, term sheets and investor conversations when the discussion reaches investor & fund types.
Why it matters: In investor & fund types, a loose definition can change rights, obligations, approval, disclosure or enforceability.
Caution
Meaning, enforceability and required process vary by jurisdiction and agreement; this definition is not legal advice.
Sources & evidence · 6
Direct term-level sources and supporting source families.
- U.S. Securities and Exchange Commission — Accredited InvestorsDirect source · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — Small Business Capital Formation GlossaryDirect source · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — Exempt OfferingsSupporting source family · primary · checked 2026-08-16
- National Venture Capital Association — Model Legal DocumentsSupporting source family · institutional · checked 2026-08-16
- Y Combinator — Safe financing documentsSupporting source family · practitioner · checked 2026-08-16
- Y Combinator — Series A Term Sheet TemplateSupporting source family · practitioner · checked 2026-08-16