Call option

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A call option, often simply labeled a "call", is a financial contract between two parties, the buyer and the seller of this type of option.wikipedia
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Strike price

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The buyer of the call option has the right, but not the obligation, to buy an agreed quantity of a particular commodity or financial instrument (the underlying) from the seller of the option at a certain time (the expiration date) for a certain price (the strike price).
In finance, the strike price (or exercise price) of an option is the fixed price at which the owner of the option can buy (in the case of a call), or sell (in the case of a put), the underlying security or commodity.

Put option

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By put-call parity, a European put can be replaced by buying the appropriate call option and selling an appropriate forward contract.

Black–Scholes model

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The most common method used is the Black–Scholes formula.
The Black–Scholes formula calculates the price of European put and call options.

Option (finance)

optionsoptionstock options
A call option, often simply labeled a "call", is a financial contract between two parties, the buyer and the seller of this type of option.
An option that conveys to the owner the right to buy at a specific price is referred to as a call; an option that conveys the right of the owner to sell at a specific price is referred to as a put.

Covered call

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A covered call is a financial market transaction in which the seller of call options owns the corresponding amount of the underlying instrument, such as shares of a stock or other securities.

Foreign exchange option

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This type of contract is both a call on dollars and a put on sterling, and is typically called a GBPUSD put, as it is a put on the exchange rate; although it could equally be called a USDGBP call.

Moneyness

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The price of the call contract must act as a proxy response for the valuation of the (1) estimated time value — thought of as the likelihood of the call finishing in-the-money and (2) the intrinsic value of the option, defined as the difference between the strike price and the market value multiplied by 100.
In finance, moneyness is the relative position of the current price (or future price) of an underlying asset (e.g., a stock) with respect to the strike price of a derivative, most commonly a call option or a put option.

Right of first refusal

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The right of first refusal is similar in concept to a call option.

Futures contract

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A put is the option to sell a futures contract, and a call is the option to buy a futures contract.

Naked call

The buyer of a call option has the right to buy a specific number of shares from the call option seller at a strike price at an expiration date (European Option).

Pre-emption right

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Overall, pre-emption right is similar to the concept of a call option.

Commodity

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The buyer of the call option has the right, but not the obligation, to buy an agreed quantity of a particular commodity or financial instrument (the underlying) from the seller of the option at a certain time (the expiration date) for a certain price (the strike price).

Financial instrument

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The buyer of the call option has the right, but not the obligation, to buy an agreed quantity of a particular commodity or financial instrument (the underlying) from the seller of the option at a certain time (the expiration date) for a certain price (the strike price).

Underlying

underlying instrumentunderlying assetunderlier
The buyer of the call option has the right, but not the obligation, to buy an agreed quantity of a particular commodity or financial instrument (the underlying) from the seller of the option at a certain time (the expiration date) for a certain price (the strike price).

Dividend

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The call contract price generally will be higher when the contract has more time to expire (except in cases when a significant dividend is present) and when the underlying financial instrument shows more volatility.

Volatility (finance)

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The call contract price generally will be higher when the contract has more time to expire (except in cases when a significant dividend is present) and when the underlying financial instrument shows more volatility.

Mathematical finance

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Determining this value is one of the central functions of financial mathematics.