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Investing & Markets

Bond Ladders: How They Work, Benefits and Trade-offs

A bond ladder holds bonds or CDs maturing on staggered dates, spreading reinvestment across rate environments and scheduling predictable cash flows.

Bond Ladders: How They Work, Benefits and Trade-offs

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What is a bond ladder?

  • A bond ladder is a set of individual bonds or CDs with staggered maturities, for example one maturing each year for several years.
  • Each maturity is a rung; when one matures, the cash can be spent or reinvested at the long end of the ladder.
  • Laddering spreads reinvestment across several rate environments instead of locking all the money in at one rate.
  • Because each bond has a set maturity date, a ladder can be lined up against known future spending.

Full Guide

What is a bond ladder?

  • A bond ladder is a set of individual bonds or CDs with staggered maturities, for example one maturing each year for several years.
  • Each maturity is a rung; when one matures, the cash can be spent or reinvested at the long end of the ladder.
  • Laddering spreads reinvestment across several rate environments instead of locking all the money in at one rate.
  • Because each bond has a set maturity date, a ladder can be lined up against known future spending.

Benefits of a bond ladder

  • It creates a schedule of principal and interest payments, as long as issuers pay as promised.
  • Bonds held to maturity repay face value barring default, whatever their market price did in between.
  • It reduces the need to predict interest rates, since only one rung is reinvested at a time.
  • Holdings are visible and there is no ongoing fund expense, although buying individual bonds involves dealer markups.

What a ladder can hold

  • Treasuries are backed by the U.S. government, their interest is exempt from state income tax, and they can be bought at auction through TreasuryDirect or a brokerage.
  • Bank CDs carry FDIC insurance up to $250,000 per depositor, per insured bank, per ownership category; brokered CDs can be hard to sell before maturity.
  • Municipal bonds offer federally tax-exempt interest, with credit quality and call features that vary by issuer.
  • Corporate bonds pay more than Treasuries for credit risk, so a ladder of them needs enough issuers to spread default risk.

How do you choose ladder length?

  • Shorter ladders keep more money maturing soon and move less with rates; longer ladders extend income further but carry more duration.
  • Length usually follows the spending horizon the ladder is meant to fund, such as the years before Social Security or pension income begins.
  • Callable bonds can break the schedule, because issuers tend to redeem them early when rates fall.
  • TIPS rungs can be used when keeping up with inflation matters more than a fixed dollar amount.

How does a ladder compare with a bond fund?

  • A bond fund has no maturity date, so its share price keeps moving with rates, while each ladder bond matures at face value barring default.
  • Funds offer broad diversification, daily liquidity and professional management with low minimums.
  • Defined-maturity bond ETFs, which hold bonds maturing in a single year, sit between the two approaches.
  • Ladders of individual corporate or municipal bonds need more capital to reach adequate diversification.

Risks and limits of a ladder

  • Selling a bond before maturity can mean a loss if rates have risen, plus a wide bid-ask spread.
  • Fixed payments lose purchasing power to inflation unless inflation-indexed bonds are used.
  • Corporate and municipal rungs carry credit and call risk.
  • When rates fall, maturing rungs must be reinvested at lower yields.

Key takeaways

  • A bond ladder staggers maturities to create scheduled cash flows and spread reinvestment over time.
  • Held-to-maturity bonds repay face value barring default, unlike a bond fund's share price.
  • Treasuries, CDs, municipals and corporates each bring different tax, credit and liquidity trade-offs.
  • Ladder length typically follows the spending the ladder is meant to fund.