volatile

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Volatility

A measure of a security's stability. It is calculated as the standard deviation from a certain continuously compounded return over a given period of time. It is an important measure in quantifying risk; for example, a security with a volatility of 50% is considered very high risk because it has the potential to increase or decrease up to half its value. Volatility may influence the type of investments one makes: one may directly invest in non-volatile securities, such as a certificate of deposit, but highly volatile securities lend themselves more to short selling and other forms of hedging.

volatile

Tending to be subject to large price fluctuations. Traders generally prefer volatile securities if they buy and sell on short-term price movements. See also beta.
References in periodicals archive ?
They also wanted to determine how these variations would affect volatile levels.
Explaining the Moon's volatile depletion has been a long-standing mystery, and yet it is a key piece of evidence about how the Earth-Moon system formed," said Dr.
Seven sulfur volatiles of hydrogen sulfide sulfur dioxide methanethiol dimethyl sulfide (DMS) dimethyl disulfide (DMDS) methional and dimethyl trisulfide (DMTS)
An insect ecologist who has also studied plant volatiles, Rick Karban of the University of California, Davis comments, "The significance of this [study] to me is that it indicates that without a central nervous system, plants are capable of behaving in ways that appear fairly sophisticated.
They may well need to upgrade inspection procedures to scrutinize scrap shipments carefully for volatile substances.
Tava and Pecetti (1997) analyzed volatiles emitted from whole inflorescences, whereas Loper and Lapioli (1971) analyzed the aroma of florets cut from the racemes.
If these countries do not neglect the development of industries which process volatile oils and other fragrance materials, Indonesia - which has large land that turns out various types of agricultural produce - should also give priorities to the development of such industries.
This extruder and thermoformer of polypropylene and polystyrene food-service items like deli containers, trays, plates, bowls, and lids needs vacuum venting to remove volatile processing additives that it compounds into PP.
The losses mostly involved methanol, which composed 35% to 55% of the total volatiles lost.
estimates that the present list of known scent genes and their associated enzymes can account for the cellular synthesis of no more than 5 percent of the plant volatiles that scientists have identified.
The Model 8400 four-position dynamic headspace autosampler, in conjunction with the Model 8000 sample concentrator, permits the unattended analysis of up to four samples by collecting the organic volatiles released during a controlled heating step, with subsequent transfer of the trapped volatiles to a gas chromatograph or GC/ MS.