Warrant

The defining mechanical feature of a warrant is that the counterparty is the issuing company, not another investor. When a listed call option is exercised, shares move from the writer to the holder and the share count is unchanged. When a warrant is exercised, the company receives the exercise price in cash and creates new shares to deliver. Equity is therefore raised at a price below the prevailing market price, and existing shareholders' claims are diluted.

Terms are set contractually rather than by an exchange: the exercise price, the exercise ratio (the number of shares each warrant delivers, which may not be one), the expiry date, and adjustment provisions for splits, stock dividends and rights issues. Many warrants also allow cashless or net-share settlement, under which the holder surrenders part of the intrinsic value instead of paying cash, and some are callable by the issuer once the share price exceeds a stated threshold.

Warrants are most common where an issuer needs to compensate investors for accepting weak credit or unattractive coupons. High-yield bonds and preferred stock are often sold as units with detachable warrants, allowing the issuer to pay a lower coupon in exchange for granting equity upside. Once detached, the warrant and the bond trade as separate securities with separate risk profiles.

They also feature prominently in rescue financing and recapitalisations, where a provider of capital demands participation in any recovery, and in SPAC unit structures, where public and sponsor warrants are standard. On the financial statements, warrants sit outside earnings until exercised, but they are disclosed as potentially dilutive securities and may be classified as equity or, where settlement features require it, as a liability remeasured at fair value through profit or loss.

A warrant's minimum value is its intrinsic value: the share price less the exercise price, multiplied by the exercise ratio, floored at zero. Because expiry is typically years away, market prices normally exceed that floor by a substantial time value, driven by volatility, the risk-free rate, remaining life and expected dividends. Standard option models provide the starting point, but the value must be adjusted downward for the dilution created on exercise, since the new shares depress the post-exercise share price.

For a bond issued with warrants, the package price equals the value of the straight bond plus the value of the warrants. Given a market yield for comparable debt without warrants, a candidate can discount the coupons and principal to obtain the bond component and attribute the residual to the equity sweetener. Note the contrast with a convertible: exercising a warrant brings cash in and leaves the debt outstanding, whereas conversion extinguishes the debt without any cash inflow.

Three tasks recur. First, distinguish a warrant from an exchange-traded call, an employee stock option and a convertible bond, in each case identifying who issues the instrument, whether new shares are created and whether the issuer receives cash. Second, split a bond-plus-warrant package into its debt and equity components using the yield on comparable non-sweetened debt. Third, quantify dilution.

The treasury stock method illustrates the third task. Suppose one million warrants carry a $20 exercise price and the average share price for the period is $25. Assumed exercise generates $20 million of proceeds, notionally used to repurchase 800,000 shares at the average price, so 200,000 incremental shares enter the diluted denominator. Warrants that are out of the money over the period are antidilutive and excluded. Candidates should also recognise that mere issuance of a warrant does not create an expense in the way employee option grants do.