Stock Research Articles

Morphological changes and luminescence of Escherichia coli in contact with Mn2O3 and Co3O4 ultrafine particles as components of a mineral feed additive.

The spread of antibiotic resistance and mineral depletion in soils encourages an intensive search for highly effective and environmentally safe bactericidal agents and sources of macro- and micro-elements. The most profitable solution would combine both the described tasks. Ultrafine particles (UFPs) have this functionality. Thus, this study aimed to analyze the bioluminescence and external morphological changes of Escherichia coli cells after contact with M2O3 and Co3O4 UFPs at effective concentrations (ECs). The antibiotic properties of the studied samples were determined on a multifunctional microplate analyzer TECAN Infinite F200 (Tecan Austria GmbH, Austria) by fixing the luminescence value of the bacterial strain E. coli K12 TG11 (Ecolum, NVO Immunotech Closed Joint Stock Company, Russia). Morphological changes in the cell structure were evaluated using a Certus Standard EG-5000 atomic force microscope equipped with NSPEC software (Nano Scan Technology LLC, Russia). The obtained results indicate high bactericidal properties of Co3O4 and Mn2O3 UFPs (EC50 at 3.1 × 10-5 and 1.9 × 10-3 mol/L, respectively) due to the degradation of the cell wall, pathological increase in size, disruption of septic processes, and loss of cytoplasmic contents. The prospects for the environmentally safe use of ultrafine materials are outlined. The limits of the dosages of Co3O4 and Mn2O3 UFPs recommended for further study in vitro and in vivo in feeding farm animals are established (no more than 4.9 × 10-4 mol/L for Mn2O3 UFPs and 1.5 × 10-5 mol/L for Co3O4 UFPs). The limitation of the work is the lack of experiments to determine the mechanisms of the toxic effect of UFP on bacteria, protein structures, and DNA and oxidative stress, which is planned to be performed in the future together with in situ and in vivo studies on animals.

Analysis of the Influence of Profitability, Leverage and ESG Disclosure on the Value of Sharia Stock Companies Registered on the ESGL Index

Analysis of the Influence of Profitability, Leverage and ESG Disclosure on the Value of Sharia Stock Companies Registered on the ESGL Index

Empirical Analysis of Sustainable Performance in Relation to Stock Exchange Performance: Evidence from Romania

Given the substantial advancements in worldwide financial markets and the sharp increase in sustainability concerns, this article proposes an incursion into the empirical analysis of the interaction between companies' sustainable performance and stock market performance, focusing on the specificities of the Romanian financial market. It emphasizes the importance of a comprehensive approach that goes beyond simple financial figure analysis to include aspects such as sustainability, corporate governance, and social impact. The article aims to shed light on this complex relationship through rigorous empirical analysis applied to data specific to the Romanian market. We will thoroughly investigate the connections between companies' sustainability practices and the evolution of stock prices, taking into account the economic particularities of Romania, culminating with the estimation of a multiple linear regression model. Our study reveals that there is a correlation between the market capitalization of a company, its corporate performance and the specific industry or sector in which it operates.

Fostering the Ummah's Economy Through the Stockinvestment System: The Views of the Mui for Sustainabledevelopment Goals (SDGS)

Purpose: This study aims to investigate the role of the stock investment system in fostering the people's economy, focusing on the views of the Indonesian Ulema Council/ Majelis Ulama Indonesia (MUI) on its contribution to the Sustainable Development Goals (SDGs). This study also aims to identify factors that support or hinder the implementation of the stock investment system in the economic context of the people in PT Suryamu. Theoretical Framework: This study uses the Islamic economic framework and principles advocated by the Indonesian Ulema Council (MUI). The stock investment system is seen as a potential instrument to promote people's economic participation and support sustainable economic development, in accordance with Islamic values that prioritize justice, transparency, and common prosperity. Methods: The data in this study was collected through the analysis of fatwa documents or guidelines issued by the MUI related to stock investment, as well as related literature studies. The collected data were analyzed thematically to identify key patterns and significant findings. This research is a type of field research using a qualitative approach, where the data will be analyzed with the fatwa of the National Sharia Council of the Indonesian Ulema Council NO: 135 / DSN-MUI / V / 2020 concerning stocks. Results and Conclusion: The results of this study show that: 1) There is clarity of the contract at the beginning of the transaction, investors use the shirkah contract, some investors are chosen to be representatives of several investors using the wakalah bil istitsmar contract and the employees who work according to the work contract set by the company use the ijarah contract. 2) The parties who are associated are Muhammadiyah investors who already have a Muhammadiyah membership card as a condition to invest their funds in PT Suryamu. 3) The object of the contract is in the form of shares in the form of letters whose initial value of shares per share is Rp 100.000,-. From the point of view of the fatwa of the National Sharia Council of the Indonesian Ulema Council NO: 135/DSN-MUI/V/2020 regarding shares is by the criteria set by the fatwa. Research implications: The Company's stock investment meets sharia criteria with well-managed potential risks. So the implications and recommendations are to continue taking investment. Originality/value: Research on sharia stock investment with the fatwa approach of the Indonesian ulema council is very unique, specially studied in companies that carry out the concept of sharia.

STOCK PRICE : IMPACT OF SALES GROWTH (SG), CASH TURNOVER (CT) AND DIVIDEND PAYOUT RATIO (DPR)

This research aims to analyze the influence of Sales Growth (SG), Cash Turnover (CT), and Dividend Payout Ratio (DPR) on Stock Price at PT. Hexindo Adiperkasa Tbk during the 2013-2022 period. The study methodology employed is a descriptive approach utilizing quantitative methods. The objective of this study is to elucidate the correlation between the independent variable and the dependent variable. The research focuses on PT. Hexindo Adiperkasa Tbk. The secondary data source is acquired from the company's official website's annual financial report. The data analysis involved descriptive tests, classical assumption tests, and quantitative testing such as linear regression analysis, correlation, coefficient of determination, and significance tests. The research results show that there are complex fluctuations between the observed variables. Partially, Sales Growth (SG), Cash Turnover (CT), and Dividend Payout Ratio (DPR) do not have a significant effect on Stock Price. Likewise, the three of them simultaneously have no significant effect on Stock Price. The implications of this research highlight the incompatibility of data with existing theory and provide insight into the factors that influence company stock prices. It is hoped that the results of this research can provide information as a basis for consideration, support, and contribution to the company.

The Influence of Earning Per Share (EPS) and Price Earnings Ratio (PER) on Stock Prices in the Food and Beverage Sector on the Indonesian Stock Exchange (BEI) for the 2015-2019 Period

The objective of this study is to examine the impact of earnings per Share (EPS) and Price Earnings Ratio (PER) on the stock prices of companies in the food and beverage industry listed on the Indonesia Stock Exchange (BEI) from 2015 to 2019. EPS is utilized as a metric to gauge the profitability of each share, whereas PER characterizes the market's assessment of the earnings generated per share. The research employed a descriptive verification analysis method, utilizing a sample of seven prominent organizations within the researched sector.The data utilized is derived from the yearly financial reports of each company, specifically secondary data. The investigation employed multiple regression approaches to examine the hypothesis regarding the impact of EPS and PER on stock prices. The test utilizes the coefficient of determination to ascertain the extent to which the regression model can account for the fluctuations in stock prices.The research findings indicate a substantial correlation between EPS (Earnings Per Share), PER (Price Earnings Ratio), and firm share prices within the food and beverage industry on the IDX (Indonesia Stock Exchange). The R^2 value of 0.753 suggests that 75.3% of the changes in stock prices can be accounted for by the independent variables, EPS and PER. In this industry, share prices are primarily influenced by the profitability per share and market valuation.In addition, this study emphasizes that additional variables not investigated in this research can significantly impact stock prices, including macroeconomic conditions, market sentiment, government regulations, and other external factors. Stable macroeconomic conditions can lead to more favorable circumstances for increased stock values, whereas government policy or market sentiment alterations can profoundly influence a company's stock performance.The recommendations derived from this study are intended for investors and corporate executives operating in the food and beverage industry on the IDX. Investors are advised to consider the earnings per share (EPS) and price-to-earnings ratio (PER) components of their fundamental analysis to make better-informed investment choices. It is recommended that companies prioritize enhancing their financial performance and ensuring openness in their financial reporting to boost market trust and raise the value of their shares.Subsequent investigations might broaden the range by including supplementary variables like Dividend Yield or Return on Equity (ROE) while doing a more extensive analysis of qualitative elements that impact market perceptions of EPS and PER. This research contributes to understanding the factors that impact share prices in the Indonesian capital market, particularly within the food and beverage industry.

Forward-looking disclosure effects on stock liquidity in China: Evidence from MD&A text analysis

We investigate the impact of forward-looking disclosures in annual reports on stock liquidity in China. Analysis of the MD&A sections within annual reports demonstrate a strong positive correlation between forward-looking disclosures and a company's stock liquidity. This promotional effect appears more pronounced within high-tech companies and those with lower levels of information transparency. Mechanistic tests indicate that the increase in equity liquidity attributable to forward-looking disclosures can be traced to heightened interest from analysts and media coverage. Further examination of the impact of MD&A textual characteristics reveals that improvements in the readability and tone of the text strengthen the effect of forward-looking information on enhancing stock liquidity. Economic consequence tests show that forward-looking disclosures not only enhance stock liquidity but also contribute to expanding investment scale, reducing financing costs, and improving both future firm performance and market valuation. These findings suggest that augmenting the efficiency of capital market information dissemination could significantly bolster financial support for the real economy.

STUDY OF RISK AND RETURN OF MUTUAL FUNDS

There are many avenues in financial market. An Investor can invest in Bank deposit, corporate debenture and bonds which has law risk with low return. He may also Investor in stock of company which has high risk with hight return. Investors look for safer investment avenues and want to maximize their returns in according to their risk. Whereas people also tries to invest money as early as possible so that the money will grow accordingly in his lifetime. Choose a good investing option is very critical because a balance is required to be maintained between the risks and returns involved in investment. Return is inspiring force and principal reward in the investment process. One of the essential, reason because ofwhich one needs to invest fairly is to meet the cost of inflation. Inflation is the rate at which the cost of living increases at that time. A mutual fund is an expertly overseen company of collective investments that swimming pools money from numerous buyers and puts it in stocks, bonds, momentary money market instruments, as nicely as distinct securities. Mutual money is emerging as helpful instrument for a large scope of speculators, from people looking to put some thing aside for retirement to subtle socialites concentrated on defending their belongings and businesspeople to make wealth. Mutual Fund is a trust that pools the reserve funds of various buyers who share a typical financial objective. Anyone with an investible overflow of as little as two or three thousand rupees can put resources into mutual fund devices as indicated by means of their expressed objective and strategy. Mutual Fund Company pools money from a gathering of individuals with normal hypothesis targets to buy securities, for example, stocks, bonds, money market instruments, a mixture of these instruments, or significantly unique belongings so as to acquire the reward of enhancement and expertly oversaw container of protections at a reasonably ease. In a mutual fund, the fund manager, who is likewise excellent as the portfolio manager, trades the funds underlying securities, acknowledging capital positive factors or losses, and gathers the dividend or hobby income. The income are passed alongside to the investors. The charge of a share of the mutual fund, acknowledged as the net asset value (NAV), which is determined on day through day base, in mild of the absolute estimation of the mutual fund divided by the extent of high-quality shares presently issued.

The Relationship Between Stress and Burnout: A Sample of Automotive Factory Workers

The purpose of this research is to determine the relationship between stress and burnout in employees of an automotive factory. This research was conducted descriptively with 306 participants at Sango Automotive Products Industry and Trade Joint Stock Company in Kocaeli/Türkiye between April and July 2021. Data were collected using the Personal Information Form, Perceived Stress Scale and Burnout Scale-Short Version. The mean Perceived Stress Scale score of participants was 25.11±7.39; The average score of the Burnout Scale were 29.69±12.61. A statistically significant positive relationship was determined between the mean Perceived Stress Scale scores and Burnout Scale scores of participants (r=0.67; p

Impact of Sharia Stock Prices: A Study on Inflation, Exchange Rate, BI Rate, and Money Supply

This study aims to examine the effect of inflation, exchange rate, BI Rate, and the amount of money in circulation on Islamic stocks in companies listed on the Jakarta Islamic Index (JII). This study uses a sample of changes in the inflation rate, changes in the exchange rate, changes in the BI rate, changes in the money supply, and Islamic stock prices. This study uses secondary data, namely reports of changes in index obtained from the official website of the Indonesian Stock Exchange and the website of the Central Statistics Agency. With the results obtained in this study, inflation has a significant negative effect on Sharia Stock Prices, Exchange Rates have a significant negative effect on Sharia Stock Prices, amount of money in circulation has a significant positive effect on the price of Sharia shares. Inflation, Exchange Rate, BI Rate, and Money Supply have a simultaneous effect on Sharia Stock Prices in Companies Listed in the Jakarta Islamic Index. Managerial implications, especially for investment managers and fund managers in the Islamic capital market. Knowing the influence of inflation, exchange rates, BI interest rates, and money supply on Islamic stock prices allows managers to make better and more strategic investment decisions.

Establishment of joint stock companies: problems and ways to solve them

Establishment of joint stock companies: problems and ways to solve them

The Role of the Board of Directors of a Public Joint Stock Company in Antitrust Risk Management

The Role of the Board of Directors of a Public Joint Stock Company in Antitrust Risk Management

The ESG-efficient frontier under ESG rating uncertainty

The impact of ESG score uncertainty on the risk-return profile of socially responsible optimal portfolios is analyzed. Focusing on the 109 largest French company stock prices between 2021 and 2024, uncertainty about ESG score is measured through the lens of investors’ assessment rather than from ESG rating agencies. The efficient frontier is generalized by introducing the degree of investors’ social responsibility to the classic Markowitz approach. Our results show that taking into account ESG uncertainty substantially degrades the trade-off between portfolio return and volatility for highly responsible and low-risk portfolios.

Optimasi Pengendalian Pengadaan Barang Consumable Menggunakan Metode Economic Order Quantity di PT. ZZ

One of the most important things for companies, especially those operating in the manufacturing industry, is inventory. Often there is a shortage or excess of stock in companies when inventory control is still not optimal. PT. ZZ is a manufacturing company which supplies consumable goods with 1 inch paper duct tape as supporting goods in the excavator assembly process. These goods often experience stock shortages so that the production process is disrupted. To overcome this problem, it is necessary to carry out an analysis using the Economic Order Quantity (EOQ) approach to determine order size, order frequency, safety stock, and reorder point. The results obtained were a Total of 892.23 orders, with orders made twice a year and an interval of 130 days. Apart from that, a safety stock of 89 pcs was also produced and are order point of 115 pcs. Furthermore, according to company policy, all costs required to purchase consumable materials such as 1 inch paper duct tape are IDR 1,632,200. Meanwhile Rp. 290,196.61 is the amount needed if applying the EOQ approach. This means that the company can save IDR 1,342,003.39 if the company controls its procurement of goods using the EOQ approach. Keywords: Consumables, Economic order quantity, Inventory, Procurement

The Impact of the Announcement of the Vaccine's Success on the Company's Stock

The Impact of the Announcement of the Vaccine's Success on the Company's Stock

The Impact of Fed Rate Hikes on Tech Company Stock Prices: Microsoft as an Example

The Impact of Fed Rate Hikes on Tech Company Stock Prices: Microsoft as an Example

Mitigating excessive financialization or promoting innovation? Productivity effects of China's carbon emission trading scheme

AbstractThe success of the carbon emissions trading scheme (ETS) in fostering a mutually beneficial outcome for both the economy and the environment depends on its ability to enhance total factor productivity (TFP). We investigate the diverse implementation of this market‐based environmental policy across Chinese provinces using a staggered Difference‐in‐Differences model. Our study delves into the mechanisms of the ETS, particularly focusing on financialization and innovation, utilizing listed companies in Chinese stock markets as our research sample spanning from 2009 to 2022. Our analysis shows several key findings: (1) ETS facilitates the growth of TFP in micro‐firms, positively influencing other listed companies within the same sector and city. However, its impact on TFP is notably weaker in regions with robust environmental information disclosure and stringent environmental regulations. (2) The ETS helps alleviate resource misallocation stemming from excessive financialization of firms, prompting them to reallocate investments from financing activities to production and operation activities, thus enhancing TFP. (3) Contrary to expectations, the ETS does not directly influence TFP through enhancing firm innovation ability; instead, it encourages directed technical innovation toward green technology over digital technology. This study highlights the effectiveness of the ETS in promoting firm development and sheds light on resource management practices within firms.

Assessment of the cybersecurity of Ukrainian public companies listed on the Warsaw Stock Exchange S.A.

Nowadays, the number of sophisticated cyberattacks targeting critical infrastructure or banking systems is increas- ing. Cases of successful attacks are not uncommon, as statistics in Ukraine demonstrate, and they are becoming more frequent and advanced. This results in an increased risk for companies listed on the stock exchange. The article provides examples of cyberattacks in Ukraine, including those using ransomware, attempts to infiltrate energy systems, and attacks on government institutions. It is noted that the presence of cyber threats is strongly linked to the politi- cal and international situation of the country. Analyses conducted focus on the examination of cyber threat events in Ukraine and their impact on the WIG_UKRAIN stock index from 2015 to 2023. The evalu- ation includes the index’s return rates on the day of the cyber threat occurrence, the following day, and the average return rate within five sessions after the threat. An analogous study for the WIG index is adopted as a benchmark. Based on the obtained results, it can be said that before the year 2022, cyberattacks on Ukraine did not have a significant impact on the value of the Ukrainian company stock index. The situation changed after 2022, where each potentially economi- cally harmful cyberattack contributed to the decrease in the value of Ukrainian-listed companies. Generally, the start of hostilities in 2022 significantly increased the volatility of the WIG_UKRAIN index quota- tions. This is to be expected, as markets react badly to uncertainty.

Stock price prediction for new energy vehicle companies based on multi-source data and hybrid attention structure

In recent years, with the rapid advancement of new energy vehicle (NEV) technology, an increasing number of individuals have begun to invest in the stock market of NEV companies. Accurate prediction holds great significance for investors as it not only mitigates investment risks but also enhances the potential returns. However, the accurate prediction of stock prices is subject to the influence of numerous factors from different aspects. Therefore, to improve the prediction accuracy of stock prices, this paper integrates multi-source data and introduces an LSTM-GRU-SA-AM model. The model comprises Long Short-Term Memory (LSTM), Gated Recurrent Unit (GRU), Self-Attention (SA), and the hybrid attention structure SA-AM, with SA representing self-attention and AM representing attention mechanism. The multi-source data consists of stock market trading data, stock data of pertinent companies, and financial news data. We have selected four stocks of Chinese NEV companies to validate the efficacy of utilizing multi-source data, and compared our LSTM-GRU-SA-AM model with six baseline models. The experimental results demonstrate that incorporating multi-source data significantly improves prediction accuracy. Moreover, among all the models examined, our proposed LSTM-GRU-SA-AM model exhibits superior performance.

THE INFLUENCE OF DER, EPS AND FINANCIAL DISTRESS ON STOCK PRICES

The growth of the population in Indonesia has an impact on the increasing needs of the community for food and beverages. This condition has led investors to be interested in investing their capital in companies in the food and beverage sector. This research aims to determine the influence of Debt to Equity Ratio (DER), Earning Per Share (EPS), and Financial Distress on stock prices. The study focuses on manufacturing companies in the food and beverage sub-sector listed on the Indonesia Stock Exchange from 2020 to 2022. This quantitative research involved a sample of 111 companies selected through purposive sampling. The analysis method used was multiple linear regression analysis with SPSS 26. The partial results indicate that the Debt to Equity Ratio (DER) variable has a significant negative impact on the company's stock prices, while the Earning Per Share (EPS) and Financial Distress variables do not have a significant effect on stock prices. Simultaneously, the Debt to Equity Ratio (DER), Earning Per Share (EPS), and Financial Distress variables in this study collectively influence the stock prices of food and beverage companies.