diff --git a/readme.md b/readme.md
index 81390d1..ecf446e 100644
--- a/readme.md
+++ b/readme.md
@@ -14,6 +14,7 @@ A lightweight, simple and easy PHP library for calculating annuities (e.g., mort
 * Annuity present and future value calculator
 * Debt amortization calculator
 * Bond fair (market) value calculator
+* Bond Yield-to-Maturity calculator
 
 Much more to come – including calculators for discount securities, ~~bond valuation~~, duration, stock pricing...