Results 11 to 20 of about 1,391,296 (199)

An analysis between implied and realised volatility in the Greek Derivatives Market [PDF]

open access: yes, 2009
In this article, we examine the relationship between implied and realised volatility in the Greek derivative market. We examine the differences between realised volatility and implied volatility of call and put options for at-the-money index options with
Chance, D.   +4 more
core   +1 more source

PERPETUAL CANCELLABLE AMERICAN CALL OPTION [PDF]

open access: yesMathematical Finance, 2011
This paper examines the valuation of a generalized American‐style option known as a game‐style call option in an infinite time horizon setting. The specifications of this contract allow the writer to terminate the call option at any point in time for a fixed penalty amount paid directly to the holder.
openaire   +3 more sources

Pricing vanilla options using artificial neural networks: Application to the South African market

open access: yesCogent Economics & Finance, 2021
In this paper, a feed-forward artificial neural network (ANN) is used to price Johannesburg Stock Exchange (JSE) Top 40 European call options using a constructed implied volatility surface.
Ryno du Plooy, Pierre J. Venter
doaj   +1 more source

Implied Volatility of Call Options and Abnormal Stock Returns: Evidence From Quantile Analysis of Abnormal Return Determinants [PDF]

open access: yesMathematics and Modeling in Finance
The present study aims to assess the impact of implied volatility (IV) extracted from call option prices on abnormal stock returns. IV, as a critical market volatility index, plays an essential role in explaining investor behavior.
Sayyede Elnaz Afzaliyan Boroujeni   +2 more
doaj   +1 more source

Option Pricing in the Moderate Deviations Regime [PDF]

open access: yes, 2016
We consider call option prices in diffusion models close to expiry, in an asymptotic regime ("moderately out of the money") that interpolates between the well-studied cases of at-the-money options and out-of-the-money fixed-strike options.
Friz, Peter   +2 more
core   +2 more sources

Pricing European Options under a Fuzzy Mixed Weighted Fractional Brownian Motion Model with Jumps

open access: yesFractal and Fractional, 2023
This study investigates the pricing formula for European options when the underlying asset follows a fuzzy mixed weighted fractional Brownian motion within a jump environment.
Feng Xu, Xiao-Jun Yang
doaj   +1 more source

Are Agricultural Options Overpriced?

open access: yesJournal of Agricultural and Resource Economics, 2011
As agricultural options markets grow, perceptions of overpricing persist among market participants. This study tests the efficiency of corn, soybean, and wheat options by computing trading returns. Several call and put option strategies yield significant
Hernan A. Urcola, Scott H. Irwin
doaj   +1 more source

Other‐Sacrificing Options [PDF]

open access: yes, 2020
I argue that you can be permitted to discount the interests of your adversaries even though doing so would be impartially suboptimal. This means that, in addition to the kinds of moral options that the literature traditionally recognises, there exist ...
Bader R.   +8 more
core   +1 more source

Optimal temporal placement of the call in beach volleyball

open access: yesCogent Psychology, 2016
The call is a tactical component in beach volleyball attacks. Through the call, the setter indicates to his or her teammate an open spot in the opponent’s court.
Stefan Künzell, Fabian Reffel
doaj   +1 more source

Using Artificial Neural Networks to Find Buy Signals for WTI Crude Oil Call Options

open access: yesEnergies, 2020
Oil price changes significantly influence proper functioning of the entire world economy, which entails the risk of losses. One of the possible ways to reduce this risk is to use some dedicated risk management tools, such as options contracts.
Radosław Puka, Bartosz Łamasz
doaj   +1 more source

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