The following terms are used to describe and measure the movement of warrants. Some investors prefer to use certain of the below calculations more than others, you should however have an understanding of all of them before trading.
The pricing tools contained on this website will provide each of these ratios for all warrants currently listed in Singapore.
Premium
The amount by which the cost of acquiring the underlying asset by exercising the warrant exceeds the cost of buying the underlying asset directly. This premium is also called ‘time value’ and will decay to equal zero at expiry.
| Call premium = |
( warrant price x conversion ratio ) + exercise price - underlying asset price |
| |
underlying asset price |
| Put premium = |
( warrant price x conversion ratio ) - exercise price + underlying asset price |
| |
underlying asset price |
Breakeven price
This is the price level at expiry above (below) which the investor will make a profit in the case of a call (put). Looking at this in another way, it is simply the exercise price plus (less) the premium for a call (put). This calculation excludes transaction costs.
Call = ( warrant price x conversion ration ) + exercise price
Put = exercise price - ( warrant price x conversion ratio )
Gearing
Indicates the increased number of warrants you can buy with a certain amount of capital as opposed to buying the underlying share. For example a gearing level of 10x means that you will be able to buy 10 times as many units of underlying exposure than you could if you purchased the underlying share. This ratio is not as practical as the two detailed below as it does take into account the responsiveness (delta) of the warrant.
Gearing = underlying asset price / ( warrant price x conversion ratio )
Delta
A very useful indicator that shows the approximate change in the warrrant for a small change in the underlying stock (or asset). For example, a delta of 60% means that the warrant should move approximately $0.06 for each $0.10 move in the underlying share (or asset).
Delta = ( change of warrant price x conversion ratio ) / change in underlying asset price
Effective gearing
A similar indicator to ‘delta’ which combines the two above calculations to express the warrant price movement as a percentage. Effective gearing indicates the percentage change in the price of a warrant relative to a one percent change in the underlying.
For example if a warrant has an effective gearing of 10x it means the warrant should move approximately 10% for a 1% movement in the underlying share. A higher effective gearing generally translates to a higher profit potential and also a higher level of risk.
Effective gearing = gearing x delta