5.4 Preferred Share Variations: Convertible, Callable, Retractable, Floating & Rate-Reset

Preferred Share Variations

Issuers add features to preferred shares to suit their financing needs and to attract investors. Each feature changes the share's risk, income and price behaviour. The cumulative feature was covered with the basics; the main remaining variations follow.

2. Convertible Preferred Shares

Convertible preferred shares grant the investor the option to convert their preferred shares into a predetermined number of common shares of the same issuing corporation.

• Conversion Ratio: The number of common shares received upon exercising the conversion feature for one preferred share:

$\text{Conversion Ratio} = \frac{\text{Par Value of Preferred Share}}{\text{Conversion Price}}$

• Parity Price of Preferred: The theoretical market value of the preferred share based solely on the current market value of the underlying common stock:

$\text{Parity Price of Preferred} = \text{Market Price of Common} \times \text{Conversion Ratio}$

• Parity Price of Common: The common share price required to match the current market price of the convertible preferred share:

$\text{Parity Price of Common} = \frac{\text{Market Price of Preferred}}{\text{Conversion Ratio}}$

• Conversion Premium: The percentage by which the market price of the convertible preferred exceeds its parity price:

$\text{Conversion Premium (\%)} = \frac{\text{Market Price of Preferred} - \text{Parity Price}}{\text{Parity Price}} \times 100\%$

Worked Parity Example: An investor owns a $25.00 par value convertible preferred share with a conversion price of $10.00. The conversion ratio is $25.00 / 10.00 = 2.5$ common shares. If the underlying common stock is trading at $14.00, the parity price of the preferred share is $35.00 ($14.00 × 2.5). If the preferred share trades in the market at $36.00, it carries a conversion premium of $[(36.00 - 35.00) / 35.00] \times 100\% = 2.86\%$.

Convertible preferred shares provide an asymmetric risk-return profile: they establish a yield floor backed by the preferred dividend when common stock prices fall, while allowing unlimited equity upside participation when the common stock rallies.

3. Callable (Redeemable) Preferred Shares

A callable preferred share grants the issuing corporation the right to redeem the shares from investors at a specified call price after a designated future date.

• The call price is normally set at par value plus a small call premium (e.g., $26.00 for a $25.00 par share), which typically declines toward par over subsequent years.
• Issuer Motivation: If market interest rates drop, the issuer can call the high-dividend preferred shares and refinance at lower financing costs.
• Investor Risk: Call provisions expose investors to reinvestment risk (having capital returned when yields are unattractive) and impose an artificial ceiling on capital appreciation above the call price.

4. Retractible Preferred Shares

A retractible preferred share grants the shareholder the contractual right to force the issuing corporation to redeem the shares for cash at par value on a predetermined retraction date.

• Investor Motivation: If market interest rates rise, standard perpetual preferred shares fall to deep discounts. A retractable preferred provides an effective "put option" that anchors the market price near par value ($25.00) as the retraction date approaches.
• Because this feature provides valuable downside capital protection to the investor, retractable preferreds are issued with lower initial dividend yields than non-retractable preferreds.

5. Floating-Rate (Variable-Rate) Preferred Shares

Floating-rate preferred shares pay a dividend that adjusts periodically (e.g., monthly or quarterly) in lockstep with prevailing short-term benchmark interest rates, such as the Canadian prime rate or the 3-month Government of Canada treasury bill yield.

• Because the dividend yield adjusts dynamically with market rates, the market price of floating-rate preferred shares experiences minimal interest rate risk, typically trading close to its $25.00 par value.

6. Fixed-Reset (Rate-Reset) Preferred Shares

Fixed-reset (rate-reset) preferred shares represent a cornerstone innovation of the Canadian capital marketplace. Developed extensively after 2008 by Canadian chartered banks, lifecos, and utilities, they dominate the Canadian preferred share landscape.

Structural Mechanics of Canadian Rate-Resets

1. Initial Fixed Term: The shares pay a fixed dividend yield for an initial period, almost universally 5 years from issuance.
2. The 5-Year Reset Anniversary: On the specified reset date, and every five years thereafter, the annual dividend resets to a new fixed rate for the subsequent 5-year period. The new rate is determined by adding a predetermined contractual spread (the fixed reset spread) to the prevailing 5-Year Government of Canada (GoC) bond yield:

$\text{New Reset Rate} = \text{5-Year GoC Bond Yield} + \text{Fixed Reset Spread}$

1. The Investor Conversion Option: At each 5-year reset milestone, the shareholder has the contractual option to choose between:
   • Retaining the fixed-rate reset preferred at the newly determined 5-year fixed coupon, OR
   • Converting their shares on a 1-for-1 basis into a floating-rate preferred share of the same series, which pays a floating quarterly dividend based on the 3-month Canadian T-bill rate plus the same reset spread.
2. The Issuer Call Option: Concurrently, the issuing corporation retains the contractual right to redeem (call) the shares at par ($25.00) on the reset date, providing the issuer with balance sheet flexibility.

Rate-Reset Market Realities and Risks

While designed to protect investors against rising interest rates, rate-reset preferreds introduced distinct market dynamics into Canada:

• When the 5-Year GoC bond yield plummets (as occurred during prolonged zero-interest-rate environments), the reset dividend rate drops significantly upon reset. Existing rate-resets suffered steep capital declines, frequently trading at deep discounts (e.g., $14.00 to $18.00 per $25.00 par share).
• When the Bank of Canada tightens monetary policy and 5-Year GoC yields escalate, reset dividend rates jump sharply upon reset, driving market prices back up toward their $25.00 par value.