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.

Color (EP)

Color is the second EP by Japanese visual kei band, Girugamesh, released on July 7, 2010.

Track listing

Personnel

References

Color (band)

Color (stylized as COLOR) was a Japanese punk band formed in 1985 by Dynamite Tommy, who founded the Free-Will record label a year later. They are considered to be important to the formation of visual kei. Their debut album Gekitotsu was named one of the top albums from 1989-1998 in a 2004 issue of the music magazine Band Yarouze.

History

Color released their debut album Gekitotsu, in January 1988. After releasing their second album Fools! Get Lucky!!, they signed to Crown Records and released their only major studio album a couple months later, Ask the Angels. It is said that the label made the band rewrite the album's lyrics, which were originally in English, in Japanese to be more accessible by the mainstream. It seemed to have worked, as Ask the Angels reached number 16 on the Oricon chart and their popularity increased. However, in January 1990 at a concert on the album's tour, in their hometown of Osaka, a fan was accidentally stomped to death. The band decided to lay low and avoid media, they ended up losing their contract with Crown. During this hiatus, Tommy formed Sister's No Future with Ken-chan (Kamaitachi), while Marry started Goatcore with You Adachi (Dead End).

Boat (band)

Boat, usually stylized as BOAT, is an American indie rock band from Seattle, Washington. Their album Dress Like Your Idols was released in 2011 on Magic Marker Records and has received favorable reviews and notable press from major media outlets including Pitchfork Media, and AllMusic.

The band's sound has been compared to Built to Spill, The New Pornographers, and Superchunk.

Discography

Studio Albums

Personnel

References

Boat (drawing)

Boat is a set of boat-like works of mathematical art introduced by mathematical artist Hamid Naderi Yeganeh.

The work is defined by trigonometric functions. One instance is composed of 2000 line segments where for each the endpoints of the k-th line segment are:

and

References

Boat (2007 film)

Boat is a short film directed by David Lynch, released in 2007 on the DVD anthology Dynamic:01.

Synopsis

Shot on digital video, Boat features closeup shots of a man (eventually revealed to be Lynch himself) taking a speedboat onto a lake, while a young woman (Emily Stofle) provides a dreamy, confused description of what is happening. Halfway through, Lynch turns to the camera and announces "we're going to try to go fast enough to go into the night". He speeds up the boat, which does indeed travel into the night.

Cast

External links