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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Validation of the coherent market hypothesis using neural networks and JSE securities exchange data

Myburgh, Gustav 12 1900 (has links)
Thesis (MBA)--Stellenbosch University, 2001. / ENGLISH ABSTRACT: Much research effort has been spent over the past few decades in the field of capital market analysis and modelling. This research was mostly based on static linear models or derivatives thereof such as the Efficient Market Hypothesis, the Capital Asset Pricing Model and the Arbitrage Pricing Theory. This study project takes an interesting look at a contemporary capital market hypothesis, which is fundamentally based on a non-linear statistical model. The Coherent Market Hypothesis (CMH) was first formulated by Tonis Vaga in 1990. It is based on a theory of social imitation, taking factors such as the underlying fundamental situation and the level of crowd behaviour into account. It also includes the phenomenon of “random walk” as a special case. The CMH departs from the premise of rational investors and normally distributed share returns. In turn, it offers a series of “market states” ranging from trendless (random walk), through unstable transition into coherent bull or bear phases and ultimately into periods of chaotic fluctuation (panics and crashes). The CMH is mathematically formulated and therefore it offers many opportunities for experimentation. This study project is an investigation of the validity and application of the CMH using real JSE data. Artificial Neural Networks were applied as computational aids. The main objective was to demonstrate the CMH’s usefulness as a forecasting tool in both a quantitative as well as qualitative capacity. The results of the quantitative analysis were not as significant or valuable as initially expected. However, the usefulness of the CMH was demonstrated in a more qualitative sense. It is shown that the CMH offers a rich theoretical framework for interpretation, understanding and recognising of market dynamics. / AFRIKAANSE OPSOMMING: Gedurende die afgelope paar dekades is aansienlike hoeveelhede navorsing gedoen in die veld van kapitaalmark analise en modellering. Hierdie navorsing was hoofsaaklik gebaseer op statiese, lineêre modelle of afgeleides daarvan, naamlik die Efficient Market Hypothesis, die Capital Asset Pricing Model en die Arbitrage Pricing Theory. Hierdie werkstuk kyk vanuit ‘n interessante oogpunt na ‘n meer hedendaagse kapitaalmark hipotese wat fundamenteel gebaseer is op ‘n nie-lineêre statistiese model. Die Coherent Market Hypothesis (CMH) is oorspronklik geformuleer deur Tonis Vaga in 1990. Dit is gebaseer op ‘n teorie van sosiale nabootsing en dit neem faktore in ag soos die onderliggende fundamentele situasie asook die vlak van groepgedrag. Die verskynsel van “random walk” word ook ingesluit as ‘n spesiale geval. Die CMH wyk af van die aanname dat beleggers rasioneel optree asook van die aanname dat aandeel opbrengste normaal verspreid is. In teendeel, die CMH omvat ‘n reeks marktoestande wat wissel van die tendenslose (random walk) deur onstabiele oorgang na koherente bul- of beerfases en uiteindelik in tydperke van chaotiese skommelings (markineenstortings). Die CMH is wiskundig geformuleer en daarom bied dit vele geleenthede ten opsigte van eksperimentering. Hierdie werkstuk is ‘n ondersoek na die geldigheid en toepassing van die CMH met die gebruik van JSE aandeledata. Kunsmatige Neurale Netwerke is gebruik as berekeningshulpmiddels. Die hoofoogmerk was om die bruikbaarheid van die CMH as voorspellingshulpmiddel te demonstreer in beide ‘n kwantitatiewe sowel as kwalitatiewe opsig. Die resultate van die kwantitatiewe analise was nie so beduidend as aanvanklik verwag nie. Die bruikbaarheid van die CMH was wel gedemonstreer in ‘n meer kwalitatiewe opsig. Dit is ook aangetoon dat die CMH ‘n omvangryke teoretiese raamwerk bied vir die interpretasie, begrip en uitkenning van markdinamika.
2

Analýza cenných papírů na kapitálových trzích (meziodvětvová komparace výše a struktury jednotlivých typů rizika a výnosu na vybraných burzách cenných papírů) / Analysis of securities to capital markets (inter-industry comparison of the amount and structure of each type of risk and return on the selected stock exchanges)

WEISSOVÁ, Kateřina January 2012 (has links)
The main objective of this thesis is to analyze selected sectors of the European capital market by means of methods of technical and fundamental analysis. Based on the results obtained for each frame exchanges, industry sectors and the best investment strategy. The first part deals with the theoretical description of securities to capital markets, investment strategies, methods of assessment of the securities in the capital markets, the theory of efficient markets, market testing and evidence of their effectiveness. On the European stock market index, including the German DAX30 randomly selected ninety nine companies with data for the period 2006 {-} the 2011th The work on the basis of a confirmed capital market inefficiencies can be found active investment strategy to achieve above average returns.
3

Komparace základních charakteristik (výnosu, rizika, stupně efektivity) na vybraných sektorech a odvětvích burzy cenných papírů / Comparison of basic characteristics (income, risks, degrees of effectiveness) in selected sectors and industries Stock Exchange

SAIKO, Michaela January 2013 (has links)
The aim of this diploma work was to analyze a selected segment of the stock exchange market using the theory of market efficiency and the methods of technical and fundamental analysis, to form an optimal investment strategy on the basis of the findings. The American stock exchange market was analyzed. Six different segments of the capital market were selected ? gold, oil and gas pipelines, steel and iron, car parts, food and telecommunication services. Each segment was represented by eight companies. The general characteristics of the companies were compared according to their profits, degree of risk, alpha and beta coefficients. Fundamental analysis was used to monitor the correlation between future profits for 2012 and alpha coefficients for the period 2007 ? 2011. The theory was proven ? at low levels of future profits, high levels of alpha coefficients were measured and vice versa - at high levels of future profits, low levels of alpha coefficients were measured. During efficiency tests, runs tests and correlation tests were monitored. During runs tests, the number of turns of a real file was compared with the number of runs of a simulated file; no distinctive variances were identified in the monitored stock titles. Forms of market efficiency were proven during the correlation tests and runs tests. The methods of technical analysis used were sliding averages, RSI indicators and Momentum. Trading on the basis of technical analysis is not completely possible because we did not succeed in finding an existing optimal strategy. If an optimal strategy works out it is regardless of the segment?s characteristics. I recommend a passive strategy with regards to the fundamental analysis.

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