Interests in land or structures attached to land.

See market efficiency.Related Terms: Market efficiency 

An option strategy in which a long position in a certain number of options is offset by a short position in a certain number of other options on the same underlying, resulting in a risk-free position.Related Terms: Option 

The difference between the maximum and minimum values in a dataset.

A fixed-income instrument’s or portfolio’s sensitivity to a change in key maturity, holding constant all other points along the yield curve.Related Terms: Yield curve 

A measurement scale that has all the characteristics of interval measurement scales as well as a true zero point as the origin.

A time series in which the value of the series in one period is the value of the series in the previous period plus an unpredictable random error.Related Terms: Time series 

Markets that rely on dealers to establish firm prices at which securities can be bought and sold.Synonyms: dealer markets

An observation drawn from a uniform distribution.

An algorithm that produces uniformly distributed random numbers between 0 and 1.Related Terms: Random number