Wednesday, October 7, 2009

Options strategies

An option strategy is implemented by combining one or more option positions and possibly an underlying stock position. Options are financial instruments that give the buyer the right to buy (for a call option) or sell (for a put option) the underlying security at some specific point of time in the future (European Option) or until some specific point of time in the future (American Option) for a price (strike price), which is fixed in advance (when the option is bought). Options strategies can favor movements in the underlying stock that are bullish, bearish or neutral. In the case of neutral strategies, they can be further classified into those that are bullish on volatility and those that are bearish on volatility. The option positions used can be long and/or short positions in calls and/or puts at various strikes.

Calls increase in value as the underlying stock increases in value. Likewise puts increase in value as the underlying stock decreases in value. Buying both a call and a put means that if the underlying stock moves up the call increases in value and likewise if the underlying stock moves down the put increases in value. The combined position can increase in value if the stock moves significantly in either direction. (The position loses money if the stock stays at the same price or within a range of the price when the position was established.) This strategy is called a straddle. It is one of many options strategies that investors can employ.

A call option is a financial contract between two parties, the buyer and the seller of this type of option. It is the option to buy shares of stock at a specified time in the future.[1] Often it is simply labeled a "call". The buyer of the option has the right, but not the obligation to buy an agreed quantity of a particular commodity or financial instrument (the underlying instrument) from the seller of the option at a certain time (the expiration date) for a certain price (the strike price). The seller (or "writer") is obligated to sell the commodity or financial instrument should the buyer so decide. The buyer pays a fee (called a premium) for this right. Call options are most profitable for the buyer when the underlying instrument is moving up, making the price of the underlying instrument closer to the strike price. The call buyer believes it's likely the price of the underlying asset will rise by the exercise date. The risk is limited to the premium. The profit for the buyer can be very large, and is limited by how high underlying's spot rises. When the price of the underlying instrument surpasses the strike price, the option is said to be "in the money".

Call options can be purchased on many financial instruments other than stock in a corporation. Options can be purchased on futures on interest rates, for example (see interest rate cap), and on commodities like gold or crude oil. A tradeable call option should not be confused with either Incentive stock options or with a warrant. An incentive stock option, the option to buy stock in a particular company, is a right granted by a corporation to a particular person (typically executives) to purchase treasury stock. When an incentive stock option is exercised, new shares are issued. Incentive stock options are not traded on the open market. In contrast, when a call option is exercised, the underlying asset is transferred from one owner to another.

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