Bonds: Simplified

Comprehensive Bond Tools with Dynamic Results

Advanced MBS Analytics

Get insight into mortgage-backed securities that usually cost a lot more. Configure parameters, input pricing, and instantly see spreads and key performance metrics. Side-by-side prepayment sensitivity tables support both PSA and CPR methodologies with sensitivity ranging from -300 to +300 basis points.

Understand Sensitivity

Visualize how bond prices respond to changing market conditions. Interactive binomial pricing trees show call decision logic, while sensitivity matrices reveal price impacts across yield and coupon variations.

• Binomial trees with call exercise visualization
• Price sensitivity matrices for yield/coupon scenarios
• Duration approximation and key insights

Educational Resources

Understanding the mechanics behind fixed income valuation is crucial. Bonds: Simplified not only performs the calculations but helps you understand the underlying assumptions and methodologies, making you a more informed analyst.

• Interactive learning library with structured paths
• Basic, Intermediate, and Advanced topics
• Interactive demonstrations and animations
• Bookmark terms for quick reference

Accessible Market Data

Pull US Treasury yield curve updates through modern APIs for accurate spread analysis. Seamless integration of current market rates into your calculations with historical rate tracking for trend analysis.

• Real-time Treasury yield curve updates
• Historical rate tracking for trend analysis
• Change heat map over dynamic dates
• Key spread metrics at a glance

Professional Analytics on iPhone

Full MBS analytics optimized for iPhone. Dynamic rate shock analysis compares baseline speeds across interest rate environments. Review scenarios, analyze prepayment speeds, and make informed decisions from anywhere.

• Horizon yield curve interpolation with customizable time horizons
• Detailed amortization schedules with period-by-period prepayment speeds
• Rich graphical representations of balances and income streams
• Smart defaults with full customization

Continuously Improving

Continuous development brings new analytical capabilities based on user feedback, ensuring the app evolves with your professional needs. Version 2025.12 introduces a modern glass-style interface, enhanced MBS analytics, and calculation history.

• Beautiful interface built with Apple's latest design principles
• CPR and PSA prepayment model selection
• Enhanced effective duration and convexity
• Automatic calculation history

Perfect For

• Fixed income analysts and portfolio managers
• Financial advisors working with bond portfolios
• Real estate professionals analyzing mortgage securities
• Students and professionals learning fixed income markets
• Anyone requiring professional bond analytics without institutional costs