Greeks (finance)

In mathematical finance, the Greeks are the quantities representing the sensitivity of the price of derivatives such as options to a change in underlying parameters on which the value of an instrument or portfolio of financial instruments is dependent. The name is used because the most common of these sensitivities are denoted by Greek letters (as are some other finance measures). Collectively these have also been called the risk sensitivities,risk measures or hedge parameters.

Use of the Greeks

The Greeks are vital tools in risk management. Each Greek measures the sensitivity of the value of a portfolio to a small change in a given underlying parameter, so that component risks may be treated in isolation, and the portfolio rebalanced accordingly to achieve a desired exposure; see for example delta hedging.

The Greeks in the Black–Scholes model are relatively easy to calculate, a desirable property of financial models, and are very useful for derivatives traders, especially those who seek to hedge their portfolios from adverse changes in market conditions. For this reason, those Greeks which are particularly useful for hedging—such as delta, theta, and vega—are well-defined for measuring changes in Price, Time and Volatility. Although rho is a primary input into the Black–Scholes model, the overall impact on the value of an option corresponding to changes in the risk-free interest rate is generally insignificant and therefore higher-order derivatives involving the risk-free interest rate are not common.

Vega (band)

Vega is a Turkish alternative rock band, founded by keyboardist Gökhan Mert Koral (also vocalist on some songs), vocalist Deniz Özbey, and guitarist Esat Tuğrul Akyüz in 1996. Gökhan Mert Koral left the group in early 2003. They played in many Turkish festivals like Rock 'n Coke. Their biggest hits were Bu Sabahların Bir Anlamı Olmalı, Serzenişte, Elimde Değil.

For their first album Tamam Sustum, the group collaborated with Turgay Gülaydın from Athena and Burak Karataş from Kargo.

Discography

Tamam Sustum (OK I Shut Up) (NR1 Müzik) (1999)

Tatlı Sert (Bittersweet) (Universal Music) (June 2002)

Vega (Gijón)

Vega is a parish of the municipality of Gijón / Xixón, in Asturias, Spain.

Its population was 3,507 in 2012.

Vega is a residential and rural area, bordering with the districts of Granda, Castiello Bernueces, Santurio, Caldones, Llavandera y Samartín de Güerces.

The famous La Camocha coal mine (closed 2007) was located in Vega. The mining town of La Camocha (including El Vaticano and Ciudad Virginia barrios) is located in the mine surroundings.

Villages and their neighbourhoods

External links

Romero

Romero is both a Spanish and an Italian surname meaning:

In the genealogical record in the Philippines

Romero is one of the surname that were been given by the Spaniards during the Spanish colonial era in the Philippines and the rest of other colonial nations in order to avoid confusions and technically, as a replacement of the indigenous surnames that were difficult to pronounce among Spaniards, altogether with the Catholic conversions as well. Majority of the ethnic Filipinos did not inherit their Spanish surnames, but obtained them for colonial purposes.

Other variations of the surname

Romero (bullfighter family)

Romero is family of bullfighters from Ronda, Spain, dating back to the 18th century. The only other family with a comparable history in bullfighting are the Ordóñez, whose founder, Cayetano Ordóñez, "El Niño de la Palmas", was also from Ronda.

Notable members of this family are:

See also

Romero (disambiguation)

Romero is a surname of Spanish origin.

Romero may also refer to: