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Related to Betacam: Digital Betacam, DVCAM, DIGIBETA


The measure of an asset's risk in relation to the market (for example, the S&P500) or to an alternative benchmark or factors. Roughly speaking, a security with a beta of 1.5, will have move, on average, 1.5 times the market return. [More precisely, that stock's excess return (over and above a short-term money market rate) is expected to move 1.5 times the market excess return).] According to asset pricing theory, beta represents the type of risk, systematic risk, that cannot be diversified away. When using beta, there are a number of issues that you need to be aware of: (1) betas may change through time; (2) betas may be different depending on the direction of the market (i.e. betas may be greater for down moves in the market rather than up moves); (3) the estimated beta will be biased if the security does not frequently trade; (4) the beta is not necessarily a complete measure of risk (you may need multiple betas). Also, note that the beta is a measure of co-movement, not volatility. It is possible for a security to have a zero beta and higher volatility than the market.


A measure of a security's or portfolio's volatility. A beta of 1 means that the security or portfolio is neither more nor less volatile or risky than the wider market. A beta of more than 1 indicates greater volatility and a beta of less than 1 indicates less. Beta is an important component of the Capital Asset Pricing Model, which attempts to use volatility and risk to estimate expected returns.


A mathematical measure of the sensitivity of rates of return on a portfolio or a given stock compared with rates of return on the market as a whole. A high beta (greater than 1.0) indicates moderate or high price volatility. A beta of 1.5 forecasts a 1.5% change in the return on an asset for every 1% change in the return on the market. High-beta stocks are best to own in a strong bull market but are worst to own in a bear market. See also alpha, capital-asset pricing model, characteristic line, portfolio beta.


Beta is a measure of an investment's relative volatility. The higher the beta, the more sharply the value of the investment can be expected to fluctuate in relation to a market index.

For example, Standard & Poor's 500 Index (S&P 500) has a beta coefficient (or base) of 1. That means if the S&P 500 moves 2% in either direction, a stock with a beta of 1 would also move 2%.

Under the same market conditions, however, a stock with a beta of 1.5 would move 3% (2% increase x 1.5 beta = 0.03, or 3%). But a stock with a beta lower than 1 would be expected to be more stable in price and move less. Betas as low as 0.5 and as high as 4 are fairly common, depending on the sector and size of the company.

However, in recent years, there has been a lively debate about the validity of assigning and using a beta value as an accurate predictor of stock performance.

References in periodicals archive ?
of America -- 1977 - Started Umatic/Beta Cassette Assembly -- 1978 - Started Magnetic Media Manufacturing -- 1983 - Started VHS Cassette Production -- 1991 - Started 8mm Video Cassette Assembly -- 1994 - Started D-8 Data Cassette Production -- 1997 - Started DDS Data Cassette Production -- 1998 - Started Metal Particle (MP) Media Production -- 1999 - Started Advanced Metal Evaporated Media Production -- 2004 - Began production of Digital Video Cassette media -- 2004 - Began production of LTO Data Storage product -- Began production of Digital Betacam
The NFL teams will use Betacam SX camcorders and videotape recorders to record practices and games for training and competitive analysis, scouting and exchanging game tapes with other teams.
The BetacamSP Digital Betacam cassettes and want to use the Sony brand MTVA existing multi-year recording equipment.
Sony previously provided NBC with Digital Betacam videotape for NBC's broadcasts of the 2000 Summer Games in Sydney, Australia.
This interface ensures that no matter what recording format is used -- MPEG IMX, Digital Betacam(R), Betacam SX(R), Betacam SP(R) or standard Betacam -- the bitstream interface throughout will be 50 Mbps, I-Frame MPEG 4:2:2P.
Prior Information Notice:Digitalisatie van audiovisueel archiefmateril: Betacam SP.
The VTR has the ability to not only support native MPEG-based inputs of 30/40/50Mbps, but will also playback and convert other formats, including Betacam(R), Betacam SP(R) and Digital Betacam(R), while transcoding MPEG-based Betacam SX(R) to this native MPEG stream," Smith added.
Shot on anamorphic 16:9 Digital Betacam with 13 cameras capturing every angle, "Depeche Mode: One Night in Paris" is an iN DEMAND concert event not to be missed.
Following digitization of the Film Archives video collection (U_Matic, 1 C, 1 B, Betacam SP, Digibeta tapes) in appropriate
1993 Sony introduces BCT-D Digital Betacam videocassettes and VTRs.
In addition to standard Composite and S-video, the DAC-2 also offers component YUV inputs and outputs making it an ideal solution for use with Betacam devices.
The Denver facility currently offers in-house duplication services for the VHS, S-VHS, 8mm, Hi-8, 3/4-inch, Betacam, Betacam SP, 1-inch, Digital Betacam, D-2 and 3/4-inch high band formats.