Bond YTM & Pricing Calculator

Calculates Yield to Maturity (YTM), Accrued Interest, and Dirty Price using standard ICMA bond formulas.

Bond YTM & Pricing Calculator (Chrome Extension) A lightweight, reliable Manifest V3 Chrome Extension that calculates Yield to Maturity (YTM), Accrued Interest, and Dirty Price for fixed income bonds using international Actual/Actual ICMA standards. Includes automated ISIN Auto-Lookup with live integration to OpenFIGI and Börse Frankfurt feeds. Features ISIN Auto-Lookup: Enter any 12-character ISIN (DE0001135275, XS2200244072, IT0001086567, US9128286T00) to automatically resolve: Security Name & Title Coupon Rate % (supporting decimal and fractional rates) Payment Frequency (Annual / Semi-Annual) Maturity Date Real-time Clean Price % quote Visual Feedback: Automatically resolved parameters flash light green for 0.6 seconds. Parameters requiring manual entry flash amber with actionable guidance. Persistent Side Panel Interface: Runs in Chrome's Side Panel drawer (chrome.sidePanel), staying open alongside web pages so you can browse, copy ISINs, and calculate yields without popup auto-closing. Accurate Financial Engine: Newton-Raphson approximation adhering strictly to ICMA Actual/Actual conventions. Input Persistence: Saves your last entered parameters securely in chrome.storage.local.