[vee-guh, vey-] 
| Astronomy. a star of the first magnitude in the constellation Lyra. |
[vey-guh; Sp. be-gah] | 1. | Lo⋅pe de [law-pe the] , (Lope Félix de Vega Carpio), 1562–1635, Spanish dramatist and poet. |
| 2. | Garcilaso de la Vega. |
| Ve·ga (vē'gə, vā'-) n. The brightest star in the constellation Lyra. [Medieval Latin, from Arabic (an-nasr) al-wāqi', the falling (eagle), Vega : al-, the + wāqi', falling, active participle of waqa'a, to fall; see wqʕ in Semitic roots.] |
| Vega (vā'gə, bě'gä) Spanish playwright whose enormous body of works, including Fuenteovejuna (c. 1619), established the national drama of Spain. Nearly 500 of his more than 2,000 plays are extant. |
Vega
The amount that the price of an option changes compared to a 1% change in volatility.
Investopedia Commentary
Vega changes when there are large price movements in the underlying asset and vega falls as the option gets closer to maturity. Vega can change even if there is no change in the price of the underlying asset, this would happen if there is a change in expected volatility.
For example, if the vega of an option is -96.94 and if implied volatility were to rise by 1% then the option value would fall by $96.94.
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vega
| Vega (vē'gə, vā'gə) Pronunciation Key
A star in the constellation Lyra and one of the five brightest stars in the night sky. It is a white main-sequence star in the Hertzsprung-Russell diagram, with an apparent magnitude of 0.04. Vega, along with Altair and Deneb, form the Summer Triangle asterism. Scientific name: Alpha Lyra. |
Vega
brightest star in the northern constellation Lyra and fifth brightest in the night sky, with a visual magnitude of 0.03. It is also one of the Sun's closer neighbours, at a distance of about 25 light-years. Vega's spectral type is A (white) and its luminosity class V (main sequence). It will become the northern polestar by about AD 14,000 because of the precession of the equinoxes.
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