Results 31 to 40 of about 136,850 (323)

Stock Prediction Model Based on Mixed Fractional Brownian Motion and Improved Fractional-Order Particle Swarm Optimization Algorithm

open access: yesFractal and Fractional, 2022
As one of the main areas of value investing, the stock market attracts the attention of many investors. Among investors, market index movements are a focus of attention.
Hongwen Hu   +3 more
doaj   +1 more source

PERSAMAAN DIFERENSIAL ORNSTEIN-UHLENBECK DALAM PERAMALAN HARGA SAHAM

open access: yesMedia Statistika, 2020
Geometric Brownian motion is one of the most widely used stock price model. One of the assumptions that is filled with stock return volatility is constant. Gamma Ornstein-Uhlenbeck process a model to describe volatility in finance.
Amam Taufiq Hidayat, Subanar Subanar
doaj   +1 more source

Numerical Stabilities of Vasicek and Geometric Brownian Motion Models

open access: yesEuropean Journal of Mathematical Analysis, 2023
Stochastic differential equations (SDEs) are very often used as models for a large number of phenomena in the physical, economic and management sciences.
O. C. Badibi   +3 more
doaj   +1 more source

Incorporating stochastic volatility and long memory into geometric Brownian motion model to forecast performance of Standard and Poor's 500 index

open access: yesAIMS Mathematics, 2023
It is known in the financial world that the index price reveals the performance of economic progress and financial stability. Therefore, the future direction of index prices is a priority of investors.
Mohammed Alhagyan, Mansour F. Yassen
doaj   +1 more source

Exact distributions of the maximum and range of random diffusivity processes

open access: yesNew Journal of Physics, 2021
We study the extremal properties of a stochastic process x _t defined by the Langevin equation ${\dot {x}}_{t}=\sqrt{2{D}_{t}}\enspace {\xi }_{t}$ , in which ξ _t is a Gaussian white noise with zero mean and D _t is a stochastic ‘diffusivity’, defined as
Denis S Grebenkov   +4 more
doaj   +1 more source

The effects of incorporating memory and stochastic volatility into GBM to forecast exchange rates of Euro

open access: yesAlexandria Engineering Journal, 2022
The performance of financial trading in any country depends significantly on the role of exchange rate, specifically the activity of international trading.
Mohammed Alhagyan
doaj   +1 more source

The application of Geometric Brownian Motion in stock forecasting during the coronavirus outbreak in Indonesia

open access: yes, 2021
Geometric Brownian Motion is a mathematical model that can be used in stock price forecasting. This research aimed to predict the stock prices during the outbreak of coronavirus in Indonesia.
I. Fitria   +2 more
semanticscholar   +1 more source

Research on Systemic Risk of the Turkish Banking Industry Based on a Systemic Risk Measurement Framework of the Fractional Brownian Motion

open access: yesDiscrete Dynamics in Nature and Society, 2021
Since the 2008 financial crisis, it is an important issue to assess the systemic risk of banks, but there is a lack of research on the assessment of the systemic risk of Turkey’s financial system. In addition, geometric Brownian motion is used in most of
Hong Fan, Lingli Feng, Ruoyu Zhou
doaj   +1 more source

An optimal polynomial approximation of Brownian motion [PDF]

open access: yes, 2020
In this paper, we will present a strong (or pathwise) approximation of standard Brownian motion by a class of orthogonal polynomials. The coefficients that are obtained from the expansion of Brownian motion in this polynomial basis are independent ...
Foster, James   +2 more
core   +3 more sources

Impact of The Coronavirus Covid-19 On Enterprises Sector In Poland - Evidence From The Warsaw Stock Exchange Index

open access: yesJournal of Modern Science, 2022
Objectives The Covid-19 coronavirus pandemic created many doubts and unknowns in all areas of the activity of enterprises, not only for those smaller and more turbulent-prone entities but also for seemingly stronger players on the market. The fundamental
Adam Oleksiuk, Rafał Łochowski
doaj   +1 more source

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