IG Bond Tenors: 3, 5, 7, 10, 30 Year Issuance

Introduction

An IG benchmark deal does not just pick a single number for "tenor." It picks one or more points on a tenor curve that runs from 2 years out to 50 years (or in rare cases 100), with each tenor appealing to a different slice of the institutional buyer base, pricing against a different point on the Treasury or swap curve, and serving a different issuer-funding purpose. Multi-tranche deals (Meta's October 2025 $30 billion offering ran six tranches across 5, 7, 10, 20, 30, and 40 years) combine several tenors into a single execution, optimizing the issuer's funding cost across the curve.

This article walks through tenor selection in detail. It covers the standard IG tenor curve, the investor-base preferences that drive demand at each point, the issuer-side considerations that shape tenor choice, the mechanics of multi-tranche issuance, and the structurally rare ultra-long bonds (50-year and 100-year) that occasionally appear at the extreme end of the curve.

US dollar IG benchmarks issue at a relatively standardized set of tenor points. The most common benchmark tenors are 5, 10, and 30 years; the 3, 7, 20, and 40-year tenors appear less frequently but are well-established. Issuance below 3 years is typically commercial paper or short-dated FRN territory; issuance beyond 40 years is rare and shows up only on specific deals where the issuer's funding needs and the investor base's appetite both align at the long end.

Why 5, 10, and 30 Are the Standard Benchmarks

The 5-, 10-, and 30-year tenors align with the most-active points on the US Treasury curve. The Treasury Department issues benchmarks at these tenors as part of its quarterly refunding cycle, creating deep secondary market liquidity in the underlying benchmark bonds. Corporate IG bonds priced against these benchmarks have the deepest natural reference point, which translates into tighter pricing and broader investor demand.

Different investor types have different preferred-duration profiles, and tenor selection is largely about matching those preferences with the issuer's funding needs.

Insurance and Pension Anchor the Long End

Life insurance companies hold long-dated IG bonds to match long-dated annuity and life insurance liabilities. The combination of Solvency II in Europe, the NAIC RBC framework in the US, and asset-liability matching practices drives heavy life-insurance demand into the 20-year and 30-year tenors specifically. Pension funds (particularly defined-benefit plans with long-duration liabilities) similarly anchor the long end. Defined benefit pension plans can have benefit payment streams extending well beyond 30 years, with roughly 15 to 40% of projected benefit payments occurring at least 30 years in the future, and matching that liability profile requires long-dated assets.

Asset-Liability Matching

The portfolio-management discipline in which an institutional investor (typically an insurance company or pension fund) selects bond holdings whose duration profile matches the duration of its liabilities. A life insurer with a 25-year average liability duration matches by holding bonds with similar duration; a pension fund with a 15-year liability duration matches with intermediate-duration bonds. Asset-liability matching is the structural driver of demand at the long end of the IG curve and the reason 30-year benchmark issuance from frequent IG issuers reliably finds deep demand from life insurers and long-duration pension funds, even in market environments where shorter-tenor demand is weaker.

Mutual Funds and Sovereign Wealth Spread Across Tenors

Mutual funds and ETFs run across the tenor curve, with allocation driven by their specific mandate (short-term, intermediate-term, or long-term IG funds each have target-tenor profiles). PIMCO's actively managed funds, BlackRock's iShares ETF franchise, Vanguard's index funds, and Fidelity's broad lineup all hold bonds at multiple points on the curve. Sovereign wealth funds typically hold IG across 5 to 20 years, with allocation reflecting their broader portfolio policies and currency-hedging considerations. Foreign reserve managers (central banks, finance ministries with reserve mandates) tend toward the shorter end of the curve (5 to 10 years) given their liquidity needs.

Money-Market and Treasury Accounts at the Short End

The short end of the IG curve (2-year, 3-year) is dominated by money-market funds, corporate treasury accounts, and short-duration mutual funds. The investor base is more rate-sensitive than the long-end base, which is why short-tenor issuance clears at tighter spreads but with more sensitivity to broader rates moves.

Issuer-side considerations on tenor selection center on three factors: the funding need being addressed, the issuer's existing maturity profile (and the refinancing wall it implies), and the shape of the yield curve at the time of issuance.

Funding Need

A specific use of proceeds drives tenor selection. M&A funding for a long-dated regulated capital program calls for long-dated debt; refinancing of short-dated maturities calls for shorter or matched-tenor issuance; bridge financing typically uses 1 to 3-year tenors. The match between use-of-proceeds duration and tenor is the first-order consideration.

Maturity Profile and Refinancing Walls

An issuer with a heavy maturity wall in a near-term year may prefer shorter-tenor bonds today to spread its refinancing schedule, even if longer-tenor demand is otherwise stronger. The existing maturity profile dictates the timing and tenor of new issuance because lumpy refinancing risk is a material credit consideration the rating agencies score against.

Yield Curve Shape

The slope of the Treasury curve drives tenor selection at the margin. A steeply upward-sloping curve makes long-dated issuance more expensive in absolute coupon terms, pushing some issuers shorter; a flat or inverted curve compresses the cost difference between tenors and lets issuers extend maturity at minimal incremental cost. The 2025 environment with a stable-to-modestly-steepening curve made the long end relatively attractive, particularly for hyperscaler issuers locking in capital structures over 30 to 50 years to match their AI-capex investment horizon.

Century Bond

A bond with a 100-year maturity, the longest contractual tenor regularly issued in modern public bond markets. Century bonds are rare and structurally driven: they require an issuer with sufficient credit quality and brand recognition to attract demand at a 100-year horizon, plus an investor base willing to commit ultra-long-duration capital. Century bonds have been issued by sovereigns (Argentina's now-restructured 2017 century bond is the canonical example), supranationals, universities (Yale, MIT), and a small number of corporates (Disney, Coca-Cola, IBM in earlier eras; Alphabet's February 2026 sterling century bond is one of the most recent). The DV01 of a 100-year bond is not materially different from a 50-year bond, which is part of why investors do not demand much more term premium for the additional 50 years of tenor.

A multi-tranche deal combines several tenors into a single execution, with each tranche pricing separately but launching and settling together. Multi-tranche structures are common for benchmark deals from frequent issuers and standard for the largest jumbo deals.

How Multi-Tranche Deals Run

The mechanics are straightforward but coordinated. Each tranche has its own indicative pricing at launch, its own order book, and its own pricing at the end of the day. FICC syndicate runs the cross-tranche order book actively, sometimes shifting size between tranches if demand is materially stronger at one tenor versus another. Meta's October 2025 deal ran six tranches simultaneously and priced all six inside initial price thoughts; the syndicate desks (Citi and Morgan Stanley as sole bookrunners) optimized cross-tranche allocation through the day to capture the $125 billion of investor demand efficiently across the curve.

Why Multi-Tranche Issuance Is the Default for Large Deals

Multi-tranche structures let issuers raise larger total deal sizes without overwhelming any single tenor's natural demand. A $30 billion single-tranche deal would saturate the 10-year tranche supply for any single issuer, but the same $30 billion spread across six tranches finds natural demand at each tenor. The structure also lets issuers optimize blended cost of funds: the long-end tranches typically price wider in absolute spread but provide longer-duration capital, while the short-end tranches price tighter but require refinancing sooner.

The tenor curve is one of the most-watched dimensions of IG issuance, and the multi-tranche format has become the default for benchmark deals from frequent issuers. The next article walks through the fixed-rate versus floating-rate notes (FRN) decision, including the structural reasons most IG issuance is fixed-rate and the specific situations where FRNs make sense.