Beta (disambiguation)

Beta may refer to:

• Beta (finance) [r]: A measure of the degree to which the rate of return of a share tracks that of the equity market as a whole (defined as the covariance between the share's rate of return and the average market rate, divided by the variance of the market rate). If beta = 1 the share's rate of return moves in line with the market rate; if it is negative, it falls when the market rate rises. ^[e]
• Beta (fish) [r]: Add brief definition or description
• Beta (genus) [r]: Add brief definition or description
• Beta (Greek letter) [r]: The second letter of the Greek alphabet, written as Β (upper-case) and β (lower-case). ^[e]
• Beta test [r]: A phase of the software development cycle in which a product is released for the first time to a large group of users or the general public, with the caveat that it is likely still to contain many defects. ^[e]