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  2. Option symbol - Wikipedia

    en.wikipedia.org/wiki/Option_symbol

    SPX 141122P00019500. The above symbol represents a put on SPX, expiring on 11/22/2014, with a strike price of $19.50. LAMR 150117C00052500. The above symbol represents a call on LAMR, expiring on 1/17/2015, with a strike price of $52.50. The OCC option symbol can be mapped to other identifiers, such as a Financial Instrument Global Identifier ...

  3. Implied volatility - Wikipedia

    en.wikipedia.org/wiki/Implied_volatility

    The reason is that the price of an option depends most directly on the price of its underlying asset. If an option is held as part of a delta neutral portfolio (that is, a portfolio that is hedged against small moves in the underlying's price), then the next most important factor in determining the value of the option will be its implied ...

  4. Box spread - Wikipedia

    en.wikipedia.org/wiki/Box_spread

    Profit diagram of a box spread. It is a combination of positions with a riskless payoff. In options trading, a box spread is a combination of positions that has a certain (i.e., riskless) payoff, considered to be simply "delta neutral interest rate position".

  5. Options strategy - Wikipedia

    en.wikipedia.org/wiki/Options_strategy

    Options spreads are the basic building blocks of many options trading strategies. [6] A spread position is entered by buying and selling options of the same class on the same underlying security but with different strike prices or expiration dates. An option spread shouldn't be confused with a spread option.

  6. Volatility smile - Wikipedia

    en.wikipedia.org/wiki/Volatility_smile

    The graph shows an implied volatility surface for all the put options on a particular underlying stock price. The z-axis represents implied volatility in percent, and x and y axes represent the option delta, and the days to maturity. Note that to maintain put–call parity, a 20 delta put must have the same implied volatility as an 80 delta ...

  7. Black's approximation - Wikipedia

    en.wikipedia.org/wiki/Black's_approximation

    In finance, Black's approximation is an approximate method for computing the value of an American call option on a stock paying a single dividend. It was described by Fischer Black in 1975. [1] The Black–Scholes formula (hereinafter, "BS Formula") provides an explicit equation for the value of a call option on a non-dividend paying stock. In ...