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 ?
Study of syntrophic anaerobic digestion of volatile fatty acids using enriched cultures at mesophilic conditions, International Journal of Environmental Science and Technology 8(1): 83-96.
Some LA-rich oils and free LA inhibited ruminal methanogenesis and increased volatile fatty acid (VFA) production, especially propionate in a culture with ground corn.
Proportions of the various volatile fatty acids produced in the rumen differ between a diet of forage and one of grain," notes Gallavan.
Effect of nitrate content of forage on the production of volatile fatty acids by sheep rumen microbes in vitro.
The increase of volatile fatty acids in the cecum and colon may have some beneficial effects.
Rumen metabolite revealed treatment effect for total volatile fatty acids (TVFA) acetic acid, propionic acid and butyric acids, holotrichs, spirotrichs and total protozoal population (Table 5).
Yan (1998) found beneficial effects of alcohol-fermented feeds for improving the marbling score of Korean native steers, and Lin (2001) observed that production of total volatile fatty acid and propionate in rumen were affected by supplementation of alcohol-added feed or alcohol-fermented feed, and may improve body weight gain of Korean native steers by decreased protein degradation as well as increased fat synthesis (Lin et al.
0523 SN-cake = Sheanut cake; SN-expeller = Sheanut expeller; SN-solvent extracted = Sheanut solvent extracted; PEG = Polyethylene glycol; NH3-N = Ammonia-N; TVFA = Total volatile fatty acids.
The filtrate was stored at -20[degrees]C until the analysis of lactic acid, volatile fatty acids and N[H.
Concentrations of volatile fatty acids in digesta obtained from the ileum, cecum, and colon were determined by gas chromatography (Model 5890 Hewlett Packard, Avondale, Pennsylvania) following the procedures described by Shen et al.
The objective of this study was to investigate fibrolytic activities profiles of FAE, AE, carboxymethyl cellulases, xylanase, avicelase and volatile fatty acids production of Neocallimastix sp.