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Bonds & Rates

A bond is just a loan you can re-sell — and the interest rate runs the entire show. Learn the see-saw that ties price to yield.

Bonds demystified from the ground up — what a bond really is (a loan you can sell), how its price and yield trade on a see-saw, what the yield curve says about the future, and how duration and convexity measure interest-rate risk. Worked numbers, the bond-price see-saw, and interactive charts throughout.

A bond is just a loan with a resale market bolted on: you lend to a government or a company, get a piece of paper promising fixed payments, and — here’s the twist — you can sell that paper to someone else tomorrow. The instant a loan becomes tradable its price has to move, because the world’s rates keep changing while your bond’s payments stay frozen.

Climbing one rung at a time, this topic covers:

It ends with a final exam that makes you trade the see-saw for real. Get these six and a bond prospectus stops looking like hieroglyphics.

In this topic

  1. 1 What Is a Bond? You're the Lender Now A bond is a loan you make: the issuer borrows now and promises periodic coupons plus your face value back at maturity. The four defining terms, a worked cash-flow, and how bonds differ from stocks. 9 min
  2. 2 Bond Prices and Yields: The See-Saw A bond's coupon is fixed, but its price moves — and price and yield always move in opposite directions. Par, premium, discount, current yield, and YTM, with clean worked numbers and a live see-saw. 9 min
  3. 3 The Yield Curve: Reading the Term Structure of Rates The yield curve plots one issuer's yields against maturity at a single moment. Learn its three shapes — normal, flat, inverted — why inversion warns of recession, and how to read the 10y−3m spread. 9 min
  4. 4 Duration: How Much Bonds Move Duration measures how much a bond's price moves when yields change. Macaulay duration as the cash-flow balance point, modified duration, the %ΔPrice ≈ −ModDur × Δyield rule, and the four drivers — worked numbers and a live see-saw. 9 min
  5. 5 Convexity: The Curve Duration Misses Duration is a straight line; the real price–yield relationship is a curve that bows above it. That curvature is convexity — it makes your losses smaller and your gains bigger than duration alone predicts. Worked numbers, a table, and a live curve. 9 min
  6. 6 Final Exam: Bonds & Rates The graded, locked capstone exam for Bonds & Rates — covering what a bond is, the price-yield seesaw, the yield curve, duration, and convexity, with a 70% pass mark. 15 min

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