What Are Convertibles?

What Are Convertibles?

4 Min.

A convertible is a bond, preferred share, or another financial instrument the shareholder can convert into common stock. Convertible securities are not classified as debt or equity; instead, they are considered a hybrid of the two categories, possessing cash flow features of both bonds and stocks. Convertibles appeal to investors because they provide protection against big losses and pay higher income than common stock. However, on the downside, converting bonds into equities is not always profitable, and most convertible bonds have a feature that allows the company to force investors to convert at a certain time.


Convertible securities, such as convertible bonds, represent a unique investment category that intertwines debt and equity characteristics. These instruments allow investors to convert their bond or preferred shareholdings into common stock, effectively transitioning from creditors to equity stakeholders at a predetermined conversion price. Additionally, convertible securities encompass various financial instruments, including notes and preferred shares, each with distinct features and potential benefits.

Exploring Convertible Investments

Investors seeking a unique blend of potential appreciation and income exceeding typical bonds or common stocks often turn to convertible investments. Convertible bonds, for example, typically feature a lower coupon rate than standard bonds. Nevertheless, the option for bondholders to convert into common stock enhances their intrinsic value.

In the realm of investments, convertible securities straddle the line between debt and equity, exhibiting characteristics of both. Due to their dual nature, these instruments represent a hybrid category, combining cash flow attributes from bonds and stocks.

Comparable to traditional bonds, convertible bonds are categorized as debt instruments. Investors who provide capital receive a fixed interest rate known as the coupon rate. However, unlike conventional bonds, convertibles grant bondholders the privilege of converting their bonds into stock shares.

Investors favor convertibles for their risk-mitigating qualities, although they may sacrifice some potential for appreciation. Most convertible bonds are callable, enabling companies to enforce conversion. Consequently, the upside potential of convertible investments may not be limitless.

Varieties of Convertible Bonds

Within the realm of convertible bonds, we encounter distinct types offering diverse features to investors.

  1. Standard Convertible Bonds: A basic, or "vanilla," convertible bond allows investors to decide whether to retain the bond until maturity or convert it into stock. If the stock's value has diminished since the bond's issuance, investors can hold the bond until maturity and receive the face value. Conversely, if the stock experiences substantial growth, investors can convert the bond into stock, allowing them to retain or sell the shares as they see fit.
  2. Mandatory Convertible Bonds: Mandatory convertible bonds require investors to convert them at specific conversion ratios and price levels. This eliminates investor discretion, as conversion is obligatory.
  3. Reversible Convertible Bonds: Reversible convertible bonds empower the issuing company with the authority to decide whether to convert the bond into equity shares or preserve it as a fixed-income investment until maturity. When conversion occurs, it transpires at predefined conversion ratios and prices.

Understanding Conversion Rates

The conversion rate, a crucial metric in convertible securities, dictates the number of shares an investor can obtain for each bond converted. This rate can either remain fixed or fluctuate based on the terms of the offering. For instance, a conversion rate 30 signifies that, for every $1,000 of par value converted by a convertible bondholder, they will receive 30 shares of stock.

However, it's important to note that converting bonds into equity isn't always a profitable endeavor. To determine the breakeven price, investors can calculate it by dividing the bond's selling price by the conversion rate.

An Example Calculation for Convertible Bonds

Let's explore a practical scenario with a convertible bond having a $1,000 par value and a market price of $800. Concurrently, the company's shares are trading at $40 each. To determine the share price at which the conversion feature becomes advantageous, we divide the bond's selling price of $800 by the conversion rate 30, resulting in $26.67. This figure is notably lower than the current share price of $40. When this condition is met, an investor can convert and realize a profit. However, if the bond never reaches this profitable point, the holder will receive the bond's stated interest rate.


Convertible securities, encompassing convertible bonds, offer investors a unique blend of investment characteristics, straddling the line between debt and equity. They provide the flexibility for bondholders to convert their holdings into common stock, delivering protection against substantial losses and higher income than standard equity investments. However, the decision to convert is not always profitable, and many convertible bonds include a provision allowing the issuer to enforce conversion at a certain point. Understanding the dynamics of conversion rates and breakeven points is essential for investors navigating this hybrid investment landscape.

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