Meaning of “beta” in the English Dictionary

"beta" in Business English

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uk /ˈbiːtə/ us /ˈbeɪtə/

IT used to describe a product or system that is at the second stage of development and that is being tested by a few customers before it is offered for sale:

betanoun [ C, usually singular ]

uk /ˈbiːtə/ us

IT →  beta version :

The beta is still being tested.

FINANCE, STOCK MARKET →  beta coefficient :

Shares with a beta greater than one are more volatile than the market.
During the recent bull market, high beta shares substantially outperformed low beta shares.


(Definition of “beta” from the Cambridge Business English Dictionary © Cambridge University Press)