7.5 Rights & Warrants

Derivatives are financial instruments whose economic value is derived from or based on an underlying asset, reference rate, or index. In Canadian financial markets, derivatives span a wide spectrum from equity-linked corporate securities—such as subscription rights and purchase warrants—to bilateral contractual commitments like forward contracts and standardized exchange-traded futures. Understanding the structural mechanics, pricing dynamics, and risk profiles of these instruments is a core competency for securities professionals advising corporate and retail clients.

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1. Subscription Rights: Pre-Emptive Corporate Offerings

A subscription right (often simply termed a right) is a privilege extended to existing common shareholders entitling them to purchase additional common shares directly from the issuing corporation in proportion to their current holdings. Rights offerings are an application of the common shareholder's pre-emptive right, a corporate governance protection that preserves an investor's proportionate ownership percentage and voting power, shielding them from involuntary equity dilution.

Operational Mechanics and Offering Terms

When a Canadian corporation conducts a rights offering, it issues a rights certificate to each shareholder of record. The offering terms specify four critical parameters:

1. Allocation Ratio: Each common share owned entitles the holder to exactly one right.
2. Subscription Ratio ($N$): The specific number of rights required to purchase one newly issued common share. For example, an offering might require 4 rights to buy 1 new share ($N = 4$).
3. Subscription Price ($S$): The predetermined price per share at which rights holders may purchase new shares. To incentivize shareholder participation and ensure successful financing, the subscription price is set at a discount to the prevailing market price of the common stock.
4. Expiration Period: Rights have a very short lifespan, typically spanning 14 to 30 calendar days (2 to 4 weeks). If not exercised or sold before the expiration date, rights lapse and become completely worthless.

Strategic Alternatives Available to the Shareholder

Upon receiving subscription rights, an investor has three viable courses of action:

• Exercise the Rights: The shareholder submits the required number of rights plus the aggregate subscription cash to the corporation's subscription agent to receive new shares. This maintains their proportional equity ownership.
• Sell the Rights in the Secondary Market: Rights are freely transferable negotiable instruments. In Canada, rights are listed and traded on exchanges like the Toronto Stock Exchange (TSX) under their own unique ticker symbol (e.g., XYZ.RT). Shareholders who do not wish to invest additional capital can sell their rights on the open market, monetizing the value of the dilution they will experience.
• Allow the Rights to Expire: If the shareholder takes no action, the rights expire worthless at the deadline. Because rights possess economic value, letting them expire constitutes a total financial loss of the right's value and results in diluted ownership.

Critical Rights Offering Dates

Under Canadian securities settlement conventions (which operate on a T+1 settlement cycle, one business day following trade date as of May 2024):

• Announcement Date: The corporation publicly declares the rights offering terms, record date, and expiration date.
• Record Date: The date established by the board of directors to determine which registered shareholders are entitled to receive rights.
• Ex-Rights Date: The first business day on which shares trade without the attached rights privilege. Under Canada's T+1 settlement cycle, the ex-rights date is normally the record date itself (the same convention as for dividends), so a buyer must trade at least one business day before the record date to receive the rights. An investor purchasing shares before the ex-rights date buys them cum-rights (with rights); an investor purchasing on or after the ex-rights date buys them ex-rights (without rights).
• Expiration Date: The final date and time by which rights must be exercised or traded.

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2. Valuing Rights: Cum-Rights and Ex-Rights Formulas

Because rights trade actively in secondary markets, their market price closely tracks their theoretical intrinsic value. The mathematical formula used to calculate theoretical value depends on whether the underlying stock is trading cum-rights or ex-rights.

1. The Cum-Rights Formula (Before the Ex-Rights Date)

During the cum-rights period, an investor buying the common stock on the exchange receives both the share and the attached right. Therefore, the prevailing market price of the stock ($M$) includes the embedded value of the right ($V$). To isolate the theoretical value of one right, an extra unit (+1) is added to the denominator:

$V_{\text{cum}} = \frac{M - S}{N + 1}$

Where:

• $V_{\text{cum}}$ = Theoretical value of one right during the cum-rights period
• $M$ = Current market price of the common share (cum-rights)
• $S$ = Subscription price per share
• $N$ = Number of rights required to purchase one new share

Worked Numeric Example: Cum-Rights Valuation

A Canadian telecommunications company whose stock trades at $45.00 launches a rights offering. Shareholders require 4 rights to subscribe for one new share at a subscription price of $35.00.

$V_{\text{cum}} = \frac{\$45.00 - \$35.00}{4 + 1} = \frac{\$10.00}{5} = \$2.00$

The theoretical value of each right is $2.00. An investor holding 400 shares receives 400 rights, worth a total of $800.00 (400 × $2.00).

2. The Ex-Rights Formula (On or After the Ex-Rights Date)

On the ex-rights date, the stock begins trading separately from the rights. The market price of the stock theoretically declines by the exact value of the detached right to an ex-rights market price ($M_e$). Because the stock price no longer embeds the right, the denominator does not require the additional unit:

$V_{\text{ex}} = \frac{M_e - S}{N}$

Where:

• $V_{\text{ex}}$ = Theoretical value of one right during the ex-rights period
• $M_e$ = Current market price of the common share (ex-rights)
• $S$ = Subscription price per share
• $N$ = Number of rights required to purchase one new share

Worked Numeric Example: Ex-Rights Valuation

Continuing the telecommunications example above, on the ex-rights date, the stock price theoretically drops by the $2.00 right value to $43.00 ($M_e = 45.00 - 2.00 = 43.00$):

$V_{\text{ex}} = \frac{\$43.00 - \$35.00}{4} = \frac{\$8.00}{4} = \$2.00$

Notice that the theoretical value of the right remains exactly $2.00, confirming mathematical equilibrium across the ex-rights transition.

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3. Share Purchase Warrants: Long-Term Equity Sweeteners

A share purchase warrant is a corporate certificate granting the holder the contractual privilege to purchase a specified number of common shares directly from the issuing corporation at a fixed exercise price within a designated time window. While structurally similar to call options and rights, warrants possess unique commercial features.

Comparison of Equity Call Instruments:
                    Subscription Rights               Share Purchase Warrants
Lifespan:           2 to 4 weeks (short-term)         2 to 5 years (long-term)
Exercise Price:     Discounted to market price        Premium to market price
Issuance Context:   Pro-rata to all shareholders      Attached as "sweetener" to debt/preferreds
Corporate Impact:   Raises immediate equity           Deferred future equity upon exercise

Commercial Purpose: Financing "Sweeteners"

Corporations primarily issue warrants as sweeteners attached to new issues of senior securities—such as corporate bonds, debentures, or preferred shares. By bundling warrants with debt instruments, the issuer offers potential equity upside to investors. In return, the corporation achieves significant financing advantages:

• Lower Coupon Rates: Bondholders accept a lower annual interest rate (e.g., 5.0% instead of 6.5%) because the warrants provide potential capital appreciation.
• Weaker Protective Covenants: Lenders may accept more flexible indenture covenants.
• Future Equity Capital Influx: When holders eventually exercise warrants, the corporation receives a fresh influx of cash equity capital at the exercise price.

Structural Characteristics of Warrants

1. Exercise Price at Inception: Unlike rights, which are priced at a discount to induce immediate subscription, warrants are issued with an exercise price set at a premium (typically 10% to 30% above) to the market price of the common shares at the time of issuance.
2. Lifespan: Warrants have an extended lifespan, typically 2 to 5 years, and in some corporate structures up to 10 years.
3. Detachable vs. Non-Detachable: Most public warrants are detachable, meaning the investor can separate the warrant from the host bond or preferred share and trade each security independently on an exchange (e.g., TSX). Non-detachable warrants must be traded and surrendered together with the host security.
4. Dilutive Capital Influx: When an investor exercises an exchange-traded call option, the shares are delivered by another market investor with zero impact on corporate capitalization. In contrast, when an investor exercises a warrant, the corporation issues brand new shares, increasing total shares outstanding and diluting future earnings per share (EPS).

Valuation Components: Intrinsic Value and Time Value

The market price of a warrant consists of two components:

• Intrinsic Value: The immediate economic value if exercised: $\text{Warrant Intrinsic Value} = \max(0, \text{Market Price of Stock} - \text{Exercise Price})$
• Time Value (Premium): The excess of the warrant's market price over its intrinsic value, representing the potential for share price appreciation before expiration: $\text{Time Value} = \text{Warrant Market Price} - \text{Intrinsic Value}$

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4. Comprehensive Comparison: Rights vs. Warrants

The following table synthesizes the fundamental distinctions between subscription rights and share purchase warrants: