beta

Average sensitivity of a security's price to overall securities market prices.

The second letter of the Greek alphabet (Β, β), preceded by alpha (Α, α) and followed by gamma, (Γ, γ). In modern Greek it represents the voiced labiodental fricative sound of v found in the English words have and vase.

The phase of development after alpha testing and before launch, in which software, while not complete, has been released to potential users for testing.