Bonds & Interest RatesBonds

A Bond Is an IOU

Lend money, get paid back with interest

The US government owes more than $40 trillion, and anyone with $100 can become one of its lenders. How does that work?

You'll find out

  • What lending $1,000 pays you back
  • Who writes the biggest IOU on Earth
  • The $34.7 billion nobody has cashed

Why it matters

You've paid interest your whole life. A bond is the same deal from the other side: the interest comes to you.

About 3 min6 interactive slides · 5 questionsLesson 91 · Zone 11

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More in this zone

  1. 92BondsCoupon, Maturity, Face ValueThe three numbers on every bond
  2. 93History of BondsBuy a Bond, Win a WarTens of millions of Americans lent money for World War II
  3. 94BondsWho Borrows With BondsGovernments, cities and companies
  4. 95Interest RatesThe Bond SeesawWhen rates rise, existing bond prices fall
  5. 96PromisesA Bond Older Than AmericaA Dutch water-board bond from 1648 still pays interest to Yale today
  6. 97Bond RiskBonds Can't Lose MoneyIn 2022, US bonds had one of their worst years on record
  7. 98Sovereign DebtThe King Who Kept DefaultingPhilip II of Spain didn't pay his debts four times
  8. 99Risk PsychologyThe Price of CertaintyWe pay extra to make a risk disappear completely