Interest Rate Fundamentals

Clear, practical guidance for understanding how interest rates shape financial decisions

This book explains the mechanics behind interest rates with a strong focus on valuation, pricing, and real-world calculation. It starts with the basic meaning of rates as cost of capital, opportunity cost, and expected return, then builds a firm foundation in time value of money, discounting, compounding, and cash flow timing.

The chapters move step by step from simple present value and future value problems to more applied topics such as loan amortization, bond pricing, yield measures, and term structure analysis. Each concept is presented with careful attention to market conventions, including compounding frequency, day-count rules, clean versus dirty prices, and coupon timing.

• How to compute present values and future values for single and multiple cash flows
• How to convert between nominal, effective, and continuously compounded rates
• How discount factors and accumulation factors connect to pricing logic
• How to infer unknown rates, yields, and implied values from cash flow patterns
• How amortizing loans, bonds, swaps, forwards, caps, and floors are valued in practice
• How to build and interpret discount curves, spot rates, and forward rates
• How to assess interest rate risk using duration, convexity, and PV01
• How day-count and scheduling conventions affect valuation outcomes

Rather than stopping at formulas, the book emphasizes the logic that ties calculations together. It shows how market quotations translate into price, how valuation identities should be checked for consistency, and how small changes in assumptions can affect results. Worked examples throughout the book help connect theory with application, making it useful for students, analysts, and finance professionals who want a reliable reference for interest rate math.

Whether you are pricing a bond, evaluating a loan, or building an interest-rate curve, this guide offers a structured path from fundamentals to practical market use.