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

Freeze!

Freeze! is a puzzle video game developed by Frozen Gun Games and released in November 2012 for iOS and Android. The game reached the top of the Apple App Store in 61 countries. It received several awards and has downloaded over ten million copies. The idea and gameplay is developed by Andreas von Lepel, who designed various games for the Commodore 64, Amiga and Game Boy in the early 80s. The artwork with its dark, atmospheric images was designed by Jonas Schenk.

Gameplay

As a small round hero in eye shape it is necessary to solve different puzzles. The player does not control the character itself, but the prison cells. With the "Freeze" Button the gravity can be deactivated and the eye remains in its place. The cells can be turned to the right position. If you activate the gravity again, the eye drops in the adjusted direction. Deadly stings and various enemies complicate the levels.

Reception

The game won Casual Games Association´s Indie Prize Europe 2013 award. It is also one of the ten best games in 2013 of the Android Quality Index. The game received "generally favorable" reviews, according to video game review score aggregator Metacritic.

Freeze (album)

Freeze is the tenth studio album by Dutch rock and roll and blues group Herman Brood & His Wild Romance. The album reached #63 on the Dutch album chart on 3 November 1990, and stayed on the chart for 5 weeks. Brood, who had just won the 1989 Popprijs, one of the highest Dutch awards for popular music, recorded Freeze with the help of Clarence Clemons of the E Street Band and Tejano accordion player Flaco Jiménez. Lack of success for this album leads Brood to stop touring.

Track listing

Personnel

References

Freeze (software engineering)

In software engineering, a freeze is a point in time in the development process after which the rules for making changes to the source code or related resources become more strict, or the period during which those rules are applied. A freeze helps move the project forward towards a release or the end of an iteration by reducing the scale or frequency of changes, and may be used to help meet a roadmap. The exact rules depend on the type of freeze and the particular development process in use; for example, they may include only allowing changes which fix bugs, or allowing changes only after thorough review by other members of the development team. They may also specify what happens if a change contrary to the rules is required, such as restarting the freeze period.

Two common types of freezes are: