scholarly journals A neural network approach for fundamental investment analysis: a case of Athens Stock Exchange

2020 ◽  
Vol 182 (3-4) ◽  
pp. 56-63
Author(s):  
Safwan Mohd Nor ◽  
◽  
Nur Haiza Muhammad Zawawi ◽  
Keyword(s):  
Stock Returns ◽  
Stock Prices ◽  
Stock Exchange ◽  
Investment Analysis ◽  
Financial Statement ◽  
Trading Costs ◽  
Network Approach ◽  
Neural Network Approach ◽  
Data Source ◽  
Athens Stock Exchange

This paper explores investment profitability in an emerging European stock market using fundamental analysis enhanced by artificial neural networks. Using a set of accounting-based financial ratios from publicly available data source, we find that these ratios possess useful information in forecasting future stock returns of Athens Stock Exchange (ATHEX) constituent firms. By combining long and short rules, the neurally reinforced fundamental strategy surpasses the unconditional buy-and-hold rule in the holdout subperiod in terms of returns (total and annualized) and risk (volatility, downside volatility and drawdown) measures. Overall results remain consistent even in the presence of trading costs. Our findings suggest that stock prices in Greece do not fully incorporate financial statement information and thus inconsistent with the principle of market efficiency at the semi-strong form.

scholarly journals Do stock prices reflect regulatory reforms in the corporate governance mechanisms?

2016 ◽  
Vol 13 (2) ◽  
pp. 419-431 ◽  
Author(s):  
Constantinos Chalevas ◽  
Christos Tzovas
Keyword(s):  
Corporate Governance ◽  
Stock Returns ◽  
Stock Prices ◽  
Value Relevance ◽  
Stock Exchange ◽  
Economic Value ◽  
Governance Mechanisms ◽  
Corporate Governance Mechanisms ◽  
Athens Stock Exchange ◽  
Regulatory Reforms

This study provides evidence on the value relevance of corporate governance mechanisms in a developing stock exchange. It empirically investigates the effect of corporate governance mechanisms prescribed by the corporate governance law (L.3016/2002) on abnormal stock returns for firms listed in the Athens Stock Exchange (ASE). The first corporate governance law in Greece aims to improve the existing corporate governance framework. However, stock prices seem no to be affected by the regulatory reforms in the corporate governance mechanisms. Three reasons are given: (1) the fundamental economic value of a firm is not affected by the introduction of corporate governance mechanisms; (2) the fundamental economic value of a firm is affected by the introduction of corporate governance mechanisms but due to the fact that the Greek stock market is not efficient share prices do not reflect firm’s fundamental economic value; and (3) investors may not be convinced that corporate governance mechanisms significantly affect the performance of a company.The findings of this study can facilitate legislators in improving the existing legislation concerning corporate governance and in developing a new one.

Abnormal stock returns in Greece during the Cypriot banking crisis

2016 ◽  
Vol 19 (2) ◽  
pp. 122-129 ◽  
Author(s):  
Spyridon Repousis
Keyword(s):  
Stock Returns ◽  
Event Study ◽  
Stock Prices ◽  
Stock Exchange ◽  
Banking Crisis ◽  
High Volume ◽  
Content Type ◽  
Abnormal Stock Returns ◽  
Athens Stock Exchange ◽  
The Impact

Purpose The purpose of this paper is to examine the impact of the Cypriot banking crisis in specific bank stocks’ prices traded in the Athens Stock Exchange. Design/methodology/approach In the present study, event study methodology has been used. The basis of the event study is to examine the returns derived from the stock prices of the relevant banks before March 15, 2013. Findings This study focuses on three banks, Bank of Cyprus, Cyprus Popular Bank and Piraeus Bank, and finds abnormal stock returns during the ten-day period before the event date (announcement of prohibition and put under suspension trading of all movable securities of Bank of Cyprus and Cyprus Popular Bank). Also, an interesting matter is that during the estimation period and in specific dates, such as October 18, 22 and 23, 2012, a high volume of stocks trading took place in Bank of Cyprus and Cyprus Popular Bank. Originality/value To the best of the author’s knowledge, this is the first study examining it.

Research of Building Intelligent Investment Decision Mode for Investment Portfolio — Using Taiwan Electronic Stock as an Example

2010 ◽  
Vol 13 (04) ◽  
pp. 621-645 ◽  
Author(s):  
Wen-Rong Jerry Ho ◽  
C. H. Liu ◽  
H. W. Chen
Keyword(s):  
Stock Returns ◽  
Stock Prices ◽  
Stock Exchange ◽  
Investment Decision ◽  
Investment Strategy ◽  
Return Rate ◽  
Selection Strategy ◽  
Stock Selection ◽  
Taiwan Stock Exchange ◽  
Book To Market Ratio

This research uses all of the listed electronic stocks in the Taiwan Stock Exchange as a sample to test the performance of the return rate of stock prices. In addition, this research compares it with the electronic stock returns. The empirical result shows that no matter which kind of stock selection strategy we choose, a majority of the return rate is higher than that of the electronics index. Evident in the results, the predicted effect of BPNN is better than that of the general average decentralized investment strategy. Furthermore, the low price-to-earning ratio and the low book-to-market ratio have a significant long-term influence.

Studying the Effect of Changing the Managing Director on the Abnormal Returns of Shares of Companies Listed on the Iraqi Stock Exchange

2021 ◽  
Vol 39 (11) ◽  
Author(s):  
Hussein Hasan ◽  
Hudaa Nadhim Khalbas ◽  
Farqad Mohammed Bakr AL Saadi
Keyword(s):  
Stock Returns ◽  
Significant Relationship ◽  
Stock Prices ◽  
Market Reaction ◽  
Stock Exchange ◽  
Hypothesis Test ◽  
Abnormal Returns ◽  
The Other ◽  
Other Hand ◽  
Abnormal Stock Returns

The aim of this research is to study the market reaction to the change of the managing director and how this change affects the abnormal returns of the shares. The research is based on the information published by the companies listed on the Iraq Stock Exchange, and 35 companies were selected for the period from 2015 to 2019. The results of the hypothesis test for this study show that there is a negative and significant relationship between the change of the managing director and abnormal stock returns. On the other hand, investors undervalue stock prices when changing CEOs. As a result, the stock returns are less than expected.

scholarly journals Pengaruh Current Ratio, Return On Assets, dan Nilai Tukar Rupiah terhadap Harga Saham Farmasi

2021 ◽  
Vol 8 (1) ◽  
pp. 32-38
Author(s):  
Neni Nur'aeni ◽  
Gusganda Suria Manda
Keyword(s):  
Stock Prices ◽  
Sampling Method ◽  
Stock Exchange ◽  
Secondary Data ◽  
Manufacturing Companies ◽  
Research Focus ◽  
Return On Assets ◽  
Current Ratio ◽  
Data Source ◽  
Company Sector

This research was conducted at manufacturing companies in the consumer goods industry sector. This research focus is on the pharmaceutical company sector listed on the Indonesia Stock Exchange (IDX) in 2014-2018. The population in this study was 11 companies. This study used a purposive sampling method, and then, based on the predetermined CRiteria, obtained eight samples of companies that will be tested in this study. The type of data in this research is quantitative data. The data source used is secondary data sourced from the official website of the IDX, BI, and their respective companies. This study's results indicate that only the Current Ratio and Return On Assets partially have a significant effect on stock prices. However, simultaneously Current Ratio, Return On Assets, and Rupiah Exchange Rate have a significant influence on stock prices.

scholarly journals Analysis of Asset Growth Anomaly on Cross-Section Stock Returns: Evidence from Indonesia Stock Exchange

2017 ◽  
Vol 20 (1) ◽  
pp. 47
Author(s):  
Muhammad Iqbal ◽  
Buddi Wibowo
Keyword(s):  
Risk Factor ◽  
Stock Returns ◽  
Cross Section ◽  
Stock Prices ◽  
Stock Exchange ◽  
High Growth ◽  
Growth Effect ◽  
Market Anomalies ◽  
Growth Anomaly ◽  
Asset Growth

Assorted types of market anomalies occur when stock prices deviate from the prediction of classical asset pricing theories. This study aims to examine asset growth anomaly where stocks with high asset growth will be followed by low returns in the subsequent periods. This study, using Indonesia Stock Exchanges data, finds that an equally-weighted low-growth portfolio outperforms high-growth portfolio by average 0.75% per month (9% per annum), confirming existence of asset growth anomaly. The analysis is extended at individual stock-level using fixed-effect panel regression in which asset growth effect remains significant even with controlling other variables of stock return determinants. This study also explores further whether asset growth can be included as risk factor. Employing two-stage cross-section regression in Fama and Macbeth (1973), the result aligns with some prior studies that asset growth is not a new risk factor; instead the anomaly is driven by mispricing due to investors’ overreaction and psychological bias. This result imply that asset growth anomaly is general phenomenon that can be found at mostly all stock market but in Indonesia market asset growth anomaly rise from investors’ overreaction, instead of  playing as a factor of risk.

scholarly journals FACTORS AFFECTING OPERATING CASH FLOW TO STOCK RETURN THROUGH STOCK PRICE

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Aprih . Santoso
Keyword(s):  
Stock Returns ◽  
Cash Flow ◽  
Stock Prices ◽  
Stock Price ◽  
Stock Return ◽  
Stock Exchange ◽  
Sampling Technique ◽  
Financial Statements ◽  
Manufacturing Companies ◽  
Operating Cash Flow

Abstract : Companies need funds in order to carry out operations such as the financing of production activities, pay employees, pay other expenses related to the operation of the company. One way to obtain these funds is to attract investors to invest in companies in the form of stock, but in making this investment is certainly not easy for investors, because investors need consideration beforehand to find out how the company's performance. The purpose of this study was to examine and analyze the effect of operating cash flow to stock return through stock price at companies listed on the Stock Exchange Year 2012-2015. The data used in this study dala are secondary data from the financial statements of companies listed on the Indonesia Stock Exchange period 2012 - 2015. The data are in the form of financial statements can be obtained from the Indonesian Capital Market Directory (ICMD), the IDX website www.idx.co. id as well as from various other sources to support this research. The population in this research is manufacturing companies listed on the Stock Exchange the period 2012 - 2015. The samples taken by the sampling technique used purposive sampling.From the test results and analysis of the data it can be concluded that operating cash flow directly and indirectly has no effect on stock returns through stock prices showed no significant results. Keywords :  Operating Cash Flow, Stock Price, Stocks Return

scholarly journals Systematic illiquidity, characteristic illiquidity, and stock returns: Timeseries analysis

2022 ◽  
Vol 9 (2) ◽  
pp. 72-80
Author(s):  
Soltane et al. ◽  
Keyword(s):  
Emerging Markets ◽  
Stock Returns ◽  
Stock Prices ◽  
Stock Price ◽  
Stock Exchange ◽  
Systematic Risk ◽  
Timeseries Analysis ◽  
The Relationship

The objective of this research is to investigate the relationship between illiquidity and stock prices on the Tunisian stock exchange. While previous researches tended to focus on one form of illiquidity to examine this relationship, our study unifies three forms of illiquidity at the same time. Indeed, we simultaneously consider illiquidity as systematic risk, as a characteristic of the market, and as a characteristic of the stock. The aggregate illiquidity of the market is the average of individual stock illiquidity. The illiquidity risk is the sensitivity of the stock price to illiquidity shocks. Shocks of market illiquidity are estimated by the innovations in the expected market illiquidity. Results show that investors on the Tunisian stock exchange do not require higher returns when they expect a rise of market illiquidity, whereas investors on U.S markets are compensated for higher expected market illiquidity. In addition, shocks of market illiquidity provoke a fall in stock prices of small caps, while large caps are not sensitive to market illiquidity shocks. This differs slightly from results based on U.S. data where illiquidity shocks reduce all stock prices but most notably those of small caps. Robustness tests validate our findings. Our results are consistent with previous studies which reported that the “zero-return” ratio predicts significantly the return-illiquidity relationship on emerging markets.

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