Enter Values
Key Formulas
IV = Investment Value (Bond Floor)
Model Assumptions
- Face value fixed at $1,000 (market convention)
- Annual coupon payment frequency
- Valuation on coupon payment date
- No call provisions or forced conversion
- No accrued interest adjustment
Conversion Analysis
Market Price Breakdown
Bond Floor Analysis
Investment value is the bond floor: what the convertible would be worth as a straight bond without the conversion feature. It provides downside protection.
Calculation Steps
Understanding Convertible Bonds
What is a Convertible Bond?
A convertible bond is a hybrid security that combines features of both debt and equity. It pays regular coupon payments like a traditional bond, but also gives the holder the right to convert the bond into a predetermined number of shares of the issuing company's common stock.
Key Convertible Bond Metrics
Conversion Value (Parity)
The conversion value, also called parity, represents what the bond would be worth if converted into stock immediately. It equals the conversion ratio multiplied by the current stock price. When the market price equals the conversion value, the bond is said to be "at parity."
Conversion Premium
The conversion premium is the percentage by which the bond's market price exceeds its conversion value. Investors pay this premium for:
- Downside protection: The bond floor limits losses if the stock declines
- Income advantage: Coupon payments typically exceed dividend income
- Optionality: The embedded call option on the stock has value
Investment Value (Bond Floor)
The investment value is the present value of the convertible's cash flows (coupons and principal) discounted at the yield of a comparable straight bond. This represents the minimum theoretical value of the convertible, providing downside protection even if the stock price falls significantly. As the stock declines, the convertible's behavior becomes more "bond-like" and approaches the investment value.
Market Conversion Price
The market conversion price is the effective price per share you would pay by buying the convertible at market price and converting to stock. It equals the bond's market price divided by the conversion ratio. The difference between this and the current stock price represents the premium per share.
Convertible Bond Value Drivers
A convertible bond's value depends on several factors:
- Stock price: Higher stock prices increase conversion value
- Stock volatility: Higher volatility increases option value
- Interest rates: Lower rates increase investment value
- Credit spreads: Tighter spreads increase investment value
- Time to maturity: Longer maturity increases time value
Frequently Asked Questions
Disclaimer
This calculator is for educational purposes only and does not constitute financial advice. Actual convertible bond valuations depend on many factors not captured here, including call provisions, credit risk changes, stock volatility, and market liquidity. Consult a qualified financial professional before making investment decisions.
