Earnings releases, calls & guidance · Working
Book-to-bill
Also called: B2B ratio
ELI5
Orders received divided by revenue billed over a period.
Used in conversation
“The number is useful only if everyone calculates book-to-bill the same way.”
Pitch context
You will see “Book-to-bill” in annual reports, earnings decks, filings and investor presentations when the discussion reaches earnings releases, calls & guidance.
Why it matters: In earnings releases, calls & guidance, 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.
Connected terms
- Book-to-bill ratioThe search label “Book-to-bill” can route to both entries.
Sources & evidence · 5
Direct term-level sources and supporting source families.
- U.S. Securities and Exchange Commission — How to Read a 10-KDirect source · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — Non-GAAP Financial Measures — Compliance and Disclosure InterpretationsDirect source · primary · checked 2026-08-16
- IFRS Foundation — IFRS GlossaryDirect source · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — EDGAR and filing resourcesSupporting source family · primary · checked 2026-08-16
- OECD — G20/OECD Principles of Corporate Governance 2023Supporting source family · institutional · checked 2026-08-16