name
Vega
VAY-guh
name
1
The brightest star in the constellation Lyra, and one of the three stars in the Summer Triangle.
"On a clear summer night, Vega is one of the easiest bright stars to spot."
noun
1
In finance, a measure of how sensitive an option's price is to changes in expected market volatility.
"Traders watch vega closely when volatility is expected to spike."
How to Use Vega
Learner’s notesIn plain EnglishA bright star, or (in finance) a measure of an option's sensitivity to volatility.
Word Forms
Vegas plural, Vegas plural, vegas plural, vegas plural
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On a clear summer night, _____ is one of the easiest bright stars to spot.
Etymology
From Arabic al-nasr al-waqi' ("the falling eagle"), the old name for the constellation, via Medieval Latin.