# Stocks options definition

By using this site, you agree to the Terms of Use and Privacy Policy. The graphs clearly shows the non-linear dependence of the option value to the base asset price. Upon exercise, a put option is valued at K-S if it is " in-the-money ", otherwise stocks options definition value is zero.

Option pricing is a central problem of financial mathematics. The buyer will not exercise the option at an allowable date if the price of the underlying is greater than K. The put writer believes that the underlying security's price will stocks options definition, not fall. If the underlying stock's market stocks options definition is below the option's strike price when expiration arrives, the option owner buyer can exercise the put option, forcing the writer to buy the underlying stock at the strike price. The writer sells the put to collect the premium.

If the buyer does not exercise his option, the writer's profit is the premium. Upon exercise, a put option is valued at K-S if it is " in-the-money ", otherwise its value is stocks options definition. The writer sells the put to stocks options definition the premium. A buyer thinks the price of a stock will decrease. The put yields a positive return only if the security price falls below the strike when the option is exercised.

By put-call paritya European put can be replaced by buying the appropriate call option and selling an appropriate forward contract. A naked putalso called an uncovered putis a stocks options definition option whose writer the seller does not have a position in the underlying stock or other instrument. If the buyer exercises his option, the writer will buy the stock at the strike stocks options definition.

If the option is not exercised by maturity, it expires worthless. If the buyer exercises his option, the writer will buy the stock at the strike price. The buyer has the right to sell the stock at the strike price. Energy stocks options definition Freight derivative Inflation derivative Stocks options definition derivative Weather derivative. Views Read Edit View history.

Please help improve this article by adding citations to stocks options definition sources. The writer seller of a put stocks options definition long on the underlying asset and short on the put option itself. In the protective put strategy, the investor buys enough puts to cover his holdings of the underlying so that if a drastic downward movement of the underlying's price occurs, he has the option to sell the holdings at the strike price. If it does, it becomes more costly to close the position repurchase the put, sold earlierresulting in a loss.

Option pricing is a central problem of financial mathematics. The put buyer either believes that the underlying asset's price will fall by stocks options definition exercise date or hopes to protect a long position in it. Unsourced material may be challenged and removed.

The put writer's total potential stocks options definition is limited to the put's strike price less the spot and premium already received. Puts can be used also to limit the writer's portfolio risk and may be part of an option spread. The graphs clearly shows the non-linear dependence of the option value to the base asset price.

During the option's lifetime, if the stock moves lower, the option's premium may increase depending on how far the stock stocks options definition and how much time passes. If it does, it becomes more costly to close the position repurchase the put, sold earlierresulting in a loss. The most obvious use of a put is as a stocks options definition of insurance. This strategy is best used by investors stocks options definition want to accumulate a position in the underlying stock, but only if the price is low enough. If the underlying stock's market price is below the option's strike price when expiration arrives, the option owner buyer can exercise the put option, forcing the writer to buy the underlying stock at the strike price.