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Implied volatility

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Definition of Implied volatility

Implied Volatility Image 1

Implied volatility

For an option, the variance that makes a call option price
equal to the market price. Given the option price, strike price, and other
factors, the Black-Scholes model computes implied volatility.


Implied volatility

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.



Related Terms:

Implied call

The right of the homeowner to prepay, or call, the mortgage at any time.


Implied repo rate

The rate that a seller of a futures contract can earn by buying an issue and then delivering
it at the settlement date. Related: cheapest to deliver issue


Reward-to-volatility ratio

Ratio of excess return to portfolio standard deviation.


Volatility

A measure of risk based on the standard deviation of investment fund performance over 3 years.
Scale is 1-9; higher rating indicates higher risk. Also, the standard deviation of changes in the logarithm of an
asset price, expressed as a yearly rate. Also, volatility is a variable that appears in option pricing formulas. In
the option pricing formula, it denotes the volatility of the underlying asset return from now to the expiration
of the option.
Std Deviation = Rating
up to 7.99 = 1
8.00-10.99 = 2
11.00-13.99 = 3
14.00-16.99 = 4
17.00-19.99 = 5
20.00-22.99 = 6
23.00-25.99 = 7
26.00-28.99 = 8
29.00 and up = 9



Volatility

The probability of change


Volatility

a. Another general term for sensitivity. b. The standard deviation
of the annualized continuously compounded rate of return of an asset. c. A
measure of uncertainty or risk.


Implied Volatility Image 2

volatility

A measure of the amount of change in the daily price of a security over a specified period of time. It is Uusually given as the standard deviation of the daily price changes of that security on an annual basis.


Volatility risk

The risk in the value of options portfolios due to the unpredictable changes in the volatility of
the underlying asset.



 

 

 

 

 

 

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