Implied volatility

Definition:

The expected volatility in a stock's return derived from its option price, maturity date, exercise price, and riskless rate of return, using an option pricing model such as Black-Scholes.

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Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

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NRA (Non-Resident Alien) Tax

The tax which must be withheld by the corporation or its disbursing agent (usually 15% or 30%, depending on the hold's citizenship).

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