Warrant
A security that entitles the holder (buyer) to buy shares in the company that issued it at a specified price, which is generally higher than the stock price at time of issue. Warrants are frequently attached to bonds or preference shares as a sweetener, allowing the issuer to pay lower interest rates or dividends. Warrants are much like call options, but the money goes to the issuer, not an option writer, and it initially has a lifespan of many years. When the warrant is exercised, the company issues new shares of stock, so the number of outstanding shares increases.
Weather Derivatives
Financial instruments that can be used by organisations or individuals as part of a risk management strategy to reduce risk associated with adverse or unexpected weather conditions. The difference from other derivative contracts is that the underlying asset (rain/temperature/snow) has no direct value to price the weather derivative.
Wholesale Market
The transactions done in this market are for large amounts. Participants in this section of the market include banks, large corporations, institutional investors and government.
Writer
The seller of an option contract is usually referred to as the writer of the option. This is the party to the option that receives the premium from the buyer and has the obligation to perform in terms of the option contract if the buyer exercises the option on or before the expiry date.