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FRN

August 31, 2024 Fixed Income

FRN stands for floating-rate note, a debt security whose coupon resets periodically using a benchmark rate plus or minus a spread.

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FRN stands for floating-rate note, a debt security whose coupon resets periodically using a benchmark or reference rate plus or minus a stated spread. The abbreviation is common in bond screens, prospectuses, fund holdings, and fixed-income commentary.

Key Takeaways

  • FRN is an abbreviation, not a separate product from a floating-rate note.
  • The important terms are reference rate, spread, reset frequency, coupon dates, maturity, caps, floors, and fallback language.
  • FRNs usually have lower fixed-rate duration than comparable fixed-rate notes, but they still have credit, liquidity, spread, and benchmark risk.
  • U.S. Treasury FRNs are a specific official product; corporate and structured FRNs can have different benchmarks and risk profiles.

FRN Coupon Formula

$$ \text{FRN Coupon Rate} = \text{Index or Reference Rate} + \text{Spread} $$

For U.S. Treasury FRNs, TreasuryDirect describes the interest rate as the sum of an index rate tied to the most recent 13-week Treasury bill auction and a spread set at the original FRN auction. Corporate FRNs may use SOFR, another benchmark, or contract-specific formulas.

Common FRN Types

FRN TypeTypical FeatureMain Review Point
Treasury FRNGovernment issuer and Treasury-specific index/spread formulaOfficial auction terms and reset mechanics.
Corporate FRNCompany issuer with benchmark plus spreadCredit risk, covenant terms, liquidity, and benchmark fallback.
Bank FRNFinancial institution issuerSeniority, regulatory capital treatment, and call features.
Structured FRNEmbedded caps, floors, leverage, or other featuresPayoff formula and downside scenario.

Practical Example

A bond screen lists a security as “FRN SOFR + 95 bps.” That means the coupon rate resets using the applicable SOFR-based reference rate plus 0.95%, subject to the note’s exact terms. The investor still needs to check maturity, issuer, reset dates, caps, floors, call features, credit quality, and liquidity.

FRN vs. Nearby Terms

TermMeaning
FRNAbbreviation for floating-rate note.
Floating-Rate NoteFull term for a debt security with a reset coupon.
Floating RateThe reset-rate mechanism itself.
VRNVariable-rate note, often used in short-reset or demand-feature contexts.

Common Mistakes

  • Assuming every FRN is low risk because the coupon resets.
  • Ignoring issuer credit quality and spread widening.
  • Treating Treasury FRN mechanics as identical to corporate FRN mechanics.
  • Missing caps, floors, call features, and benchmark fallback terms.
  • Comparing FRNs only by current coupon instead of expected reset path and price.

Public Source Checks

  • Floating-Rate Note: The full form of FRN.
  • Benchmark Rate: The base rate used in the reset formula.
  • Spread: The margin added to or subtracted from the reference rate.
  • Treasury Note: Treasury FRNs are part of the broader marketable Treasury security family.
  • Credit Risk: FRNs still depend on issuer repayment capacity.

FAQs

What does FRN stand for?

FRN stands for floating-rate note.

How is an FRN coupon determined?

The coupon is usually calculated from a reference rate plus or minus a stated spread, subject to the note’s reset dates, day-count convention, and any caps or floors.

Are FRNs safer than fixed-rate bonds?

They may have less fixed-rate duration, but they are not automatically safer. Credit, liquidity, spread, benchmark, call, tax, and structural risks can still matter.
Revised on Sunday, June 21, 2026
Floating-Rate Note