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Put option: A put option gives its buyer the right, but not the obligation, to sell a stock at the strike price prior to the expiration date. When you buy a call or put option, you pay a premium ...
Option values vary with the value of the underlying instrument over time. The price of the call contract must act as a proxy response for the valuation of: the expected intrinsic value of the option, defined as the expected value of the difference between the strike price and the market value, i.e., max[S−X, 0]. [3]
Call options vs. put options The other major kind of option is called a put option, and its value increases as the stock price goes down. So traders can wager on a stock’s decline by buying put ...
In finance, a put or put option is a derivative instrument in financial markets that gives the holder (i.e. the purchaser of the put option) the right to sell an asset (the underlying), at a specified price (the strike), by (or on) a specified date (the expiry or maturity) to the writer (i.e. seller) of the put.
A call option is in the money when the strike price is below the spot price. A put option is in the money when the strike price is above the spot price. With an "in the money" call stock option, the current share price is greater than the strike price so exercising the option will give the owner of that option a profit.
The trinomial tree is a lattice-based computational model used in financial mathematics to price options. It was developed by Phelim Boyle in 1986. It is an extension of the binomial options pricing model, and is conceptually similar. It can also be shown that the approach is equivalent to the explicit finite difference method for option ...
At each final node of the tree—i.e. at expiration of the option—the option value is simply its intrinsic, or exercise, value: Max [ (S n − K), 0 ], for a call option Max [ (K − S n), 0 ], for a put option, Where K is the strike price and is the spot price of the underlying asset at the n th period.
The Merton model, [1] developed by Robert C. Merton in 1974, is a widely used "structural" credit risk model. Analysts and investors utilize the Merton model to understand how capable a company is at meeting financial obligations, servicing its debt, and weighing the general possibility that it will go into credit default.