
[Middle English, from Greek ō mega, large o (from its being a long vowel in Greek) : ō, the letter o + mega, neuter of megas, large, great.]
[Etymology: Anglicized name of Ω, the last letter in the Greek alphabet] electromagnetics See ohm.
| Oligopsony, Oligopoly | |
| Omitted Dividend, Omnibus Account |
The last letter of the Greek alphabet, used in mathematics for the first infinite ordinal, which measures the ordering by magnitude of the set of finite ordinals.
A measure of the change in an option's value with respect to the percentage change in the underlying price. The omega gives option investors an idea of how the option price and the stock price that underlies it move together.
Omega is the third derivative of the option price, and the derivative of gamma.
Investopedia Says:
If the omega on a Ford call option is calculated to be 1.6%, then for every 1% change in the price of Ford the price of the call option will rise by 1.6%.
Also known as "speed".
Related Links:
Understanding price influences on options positions requires learning delta, theta, vega and gamma. Getting To Know The "Greeks"
These risk-exposure measurements help traders
detect how sensitive a specific trade is to price, volatility and time decay. Using "The Greeks" To Understand Options
An introduction to the world of options, covering everything from primary concepts to how options work and why you might use them. Options Basics Tutorial

The twenty-fourth and last letter of the Greek alphabet, Ω.
| Look up Ω or ω in Wiktionary, the free dictionary. |
| Greek alphabet | |||
|---|---|---|---|
| Αα | Alpha | Νν | Nu |
| Ββ | Beta | Ξξ | Xi |
| Γγ | Gamma | Οο | Omicron |
| Δδ | Delta | Ππ | Pi |
| Εε | Epsilon | Ρρ | Rho |
| Ζζ | Zeta | Σσς | Sigma |
| Ηη | Eta | Ττ | Tau |
| Θθ | Theta | Υυ | Upsilon |
| Ιι | Iota | Φφ | Phi |
| Κκ | Kappa | Χχ | Chi |
| Λλ | Lambda | Ψψ | Psi |
| Μμ | Mu | Ωω | Omega |
| History | |||
| Archaic local variants
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Omega (capital: Ω, lowercase: ω; Greek Ωμέγα) is the 24th and last letter of the Greek alphabet. In the Greek numeric system, it has a value of 800. The word literally means "great O" (ō mega, mega meaning 'great'), as opposed to omicron, which means "little O" (o mikron, micron meaning "little").[1] This name is Byzantine; in Classical Greek, the letter was called ō (ὦ), whereas the omicron was called ou (οὖ).[2] The form of the uppercase letter derives from that of an omicron (Ο) broken up at the side (
), with the edges subsequently turned outwards (
,
,
).[3] The modern lowercase shape goes back to the uncial form
, a form that developed during the 3rd century BC in ancient handwriting on papyrus, from a flattened-out form of the letter (
) that had its edges curved even further upwards.[4]
Phonetically, the Ancient Greek Ω is a long open-mid o [ɔː], equal to the vowel of British English raw. In Modern Greek Ω represents the same sound as omicron. The letter omega is transcribed ō or simply o.
Omega (the last letter of the Greek alphabet) is often used to denote the last, the end, or the ultimate limit of a set, in contrast to alpha, the first letter of the Greek alphabet.
Omega was also adopted into the early Cyrillic alphabet. See Cyrillic omega (Ѡ, ѡ). A Raetic variant is conjectured to be at the origin or parallel evolution of the Elder Futhark ᛟ.
Omega was also adopted into the Latin alphabet, as a letter of the 1982 revision to the African reference alphabet. It has had little use. See Latin omega.
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This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (August 2009) |
The majuscule letter Ω is used as a symbol:
The minuscule letter ω is used as a symbol:
)This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
Dansk (Danish)
n. - omega
symb. - 24. bogstav i det græske alfabet
Nederlands (Dutch)
omega, einde, laatste
Français (French)
n. - oméga
symb. - (Phys) oméga
Deutsch (German)
n. - Omega
symb. - Omega
Ελληνική (Greek)
n. - ωμέγα, (μτφ.) οτιδήποτε ακροτελεύτιο ή τελευταίο σειράς
idioms:
Português (Portuguese)
n. - ômega (m)
idioms:
idioms:
Español (Spanish)
n. - omega
symb. - omega
Svenska (Swedish)
n. - grek.bokstaven omega, (bildl) ände, slut
中文(简体)(Chinese (Simplified))
希腊字母的最后一个字, 最后, 终了
中文(繁體)(Chinese (Traditional))
n. - 希臘字母的最後一個字, 最後, 終了
symb. - 終了
한국어 (Korean)
n. - 최후, 글자오메가
symb. - 마지막
日本語 (Japanese)
n. - オーメガ, 終わり, 最後, オメガ
العربيه (Arabic)
(الاسم) آخر الأحرف اليونانيه, نهايه
עברית (Hebrew)
n. - אומגה (האות האחרונה באלפבית היוונית), האחרון בסדרה, ההתפתחות הסופית
symb. - אומגה (אות יוונית)
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