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Relationship between share index volatility, basis and open interest in futures contracts : the South African experienceMotladiile, Bopelokgale 04 1900 (has links)
Study project (MBA)--University of Stellenbosch, 2003. / ENGLISH ABSTRACT: In a rational efficiently functioning market, the price of the share index and share
index futures contracts should be perfectly contemporaneously correlated. According
to the cost of carry model, the futures price should equal its fair value at maturity.
The basis should be equal to the cost of carry throughout the duration of the futures
contract.
However, in practice the cost of carry model is obscured and the basis varies and is
normally not equal to the cost of carry. Reasons for this variability in basis include
the mark-to-market requirement of the futures contract, the differential tax treatment
of spot and futures contracts, as well as the transaction cost of entering into a
contract. Transaction costs are lower for futures contracts than for spot contracts.
This study uses the Chen, Cuny and Haugen (1995) model to examine the
relationship between the basis and volatility of the underlying index and between the
open interest of the futures contract and the volatility of the underlying index. Chen
et al. (1995) predicted that the basis is negatively related to the volatility of the
underlying index and that the open interest is positively related to the volatility of the
underlying index. The study will also test the statement by Helmer and Longstaff
(1991) that the basis has a negative concave relationship with the level of interest
rate. The tests were performed on data from ALSI, FINI and INDI futures contracts.
The sample period was from January 1998 to December 2001.
The results correspond to those obtained by Chen et al. (1995) in that the basis is
negatively related to the volatility of the underlying index. This is true for all the three
indices. The other main prediction of the Chen, Cuny and Haugen (CCH) model
(1995), which is also supported by the study, is that open interest is significantly
related to the volatility of the underlying index. The study also supports the
statement by Helmer and Longstaff (1991) that the there is a highly significant
negative concave relationship between the basis and interest rate. / AFRIKAANSE OPSOMMING: In "n mark wat rasioneel funksioneer, behoort die prys van die aandele-indeks en
aandele-indekstermynkontrakte perfek gekorreleer te wees in tyd. Volgens die
drakostemodel behoort die termynkontrakprys op die vervaldatum gelyk te wees aan
die billike waarde daarvan. Die basis behoort vir die looptyd van die termynkontrak
gelyk te wees aan die drakoste.
In die praktyk word die drakostemodel egter vertroebel en wissel die basis en is dit
gewoonlik nie gelyk aan die drakoste nie. Redes vir hierdie veranderlikheid van die
basis sluit in die waardasie teenoor markprys van die termynkontrak, die belasting
van toepassing op loko- en termynkontrakte, asook die transaksiekoste by die
aangaan van "n kontrak. transaksiekoste vir termynkontrakte is laer as vir
lokokontrakte.
Hierdie studie gebruik die model van Chen, Cuny en Haugen (1995) om die
verwantskap tussen die basis en die volatiliteit van die onderliggende indeks en
tussen die oop kontrakte van die termynkontrak en die volatiliteit van die
onderliggende indeks te ondersoek. Chen et al. (1995) voer aan dat daar 'n
negatiewe verwantskap is tussen die basis en die volatiliteit van die onderliggende
indeks en dat daar "n positiewe verwantskap is tussen die oop rente en die volatiliteit
van die onderliggende indeks. Die studie toets ook Helmer en Longstaff (1991) se
hipotese dat daar 'n negatiewe, konkawe verhouding tussen die basis en die
rentekoersvlak bestaan. Die toetse is uitgevoer op data van ALSI-, FINI- EN INDItermynkontrakte.
Die steekproef was van Januarie 1998 tot Desember 2001.
Die resultate stem ooreen met dié van Chen, Cuny en Haugen (1995) se model
(CCH-model) in dié opsig dat daar "n negatiewe verband is tussen die basis en die
volatiliteit van die onderliggende indeks. Dit geld vir al drie die indekse. Die ander
hoofresultate van Chen et al. (1995), wat ook deur die studie ondersteun word, is dat
daar "n beduidende verband tussen die oop kontrakte en die volatiliteit van die
onderliggende indeks bestaan. Die studie ondersteun ook Helmer en Longstaff(1991) se siening dat daar 'n beduidende, negatiewe, konkawe verhouding tussen
die basis en die rentekoers bestaan.
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The impact of mergers and acquisitions announcements on the share price performance of acquiring companies: South African listed companiesNdlovu, Mthabisi January 2017 (has links)
Thesis submitted in fulfilment of the requirements for the degree of
Master of Management in Finance & Investment
in the Faculty of Commerce, Law and Management Wits Business School at the University of the Witwatersrand
2017 / This thesis empirically examines the stock market reaction to mergers and acquisitions (M&A) announcements in South Africa, and also analyses the effects of the method payment. Data was collected from 34 acquisitions, consisting of acquirer and target companies in the same industry listed on the Johannesburg Stock Exchange, (JSE). The transactions were of mergers and acquisitions for the period 2003 – 2013. The event study methodology was used to calculate cumulative average abnormal returns for the acquiring companies over the total event window. Parametric t-tests were then applied to test the significance of the cumulative average abnormal returns, and a comparison of the pre and post-announcement returns was done over the event window. A comparison is also done for cash and share acquisitions over the entire event window (-10, +10). From the findings, it is clear that there were no significant abnormal returns or significant differences between the pre and post announcement returns. Comparing the two payment methods (cash and share payments), the results also show that there were no significant differences between these methods. The study therefore concluded that merger and acquisition announcements did not create any value for shareholders of acquiring companies during and around the announcement period. / MT2017
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Exchange rate shocks and the stock market index : evidence from the Johannesburg Stock Exchange.Muzindutsi, Paul-Francois. January 2011 (has links)
The foreign exchange market plays an important role in global finance, as it is considered to be among the largest financial markets in the world because of the significant amount of money involved in the foreign exchange market's transactions. Economic theories show that the exchange rate market may interact with the stock market index, but empirical studies on the interaction between the exchange rate market and the stock market index produced mixed results. Thus there is no empirical agreement regarding the interactions between the stock prices and exchange rate. This study examined the interaction between the real exchange rate and the stock market index in South Africa, with the aim of identifying the effect of exchange rate shocks on the Johannesburg Stock Exchange (JSE). It establishes the direction of causality between the stock market index and the real exchange rate; identifies the long-run and short-run relationships between the South African stock market and the exchange rate and determines the response of the South African stock market to different exchange rate regimes from 1978 to 2008. This study used different econometrics models, including descriptive statistics analysis, Engle-Granger cointegration approach, Error Correction Model and a Granger-Causality test. Variables used in this study include the real values of the JSE all share index and the real exchange rate series (the Rand/U.S. dollar exchange rate) from January 1978 to December 2008.
The stock market index responded to changes in exchange rate regimes. Although the response tended to be slightly stronger during the period of the free floating exchange rate, correlation coefficients were insignificant in both fixed and flexible exchange rate regimes. A negative long-run relationship between the real exchange rate and the stock market index was found. The short-run results established that changes in the real exchange rate have no impact on the real stock market index. Granger-Causality tests indicated that there is a bidirectional causal relationship between the South African stock market index and the Rand/U.S. dollar exchange rate. / Thesis (M.Com.)-University of KwaZulu-Natal, Pietermaritzburg, 2011.
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Adopting price-earnings and enterprise multiples to beat the Johannesburg Stock Exchange All Share Index.Allison, Dylan Mayne. January 2009 (has links)
The theory behind the efficient market hypothesis exerts that it is not possible to consistently outperform
the overall stock market by using stock picking and market timing strategies. The argument holds
that, in an efficient market, all stock prices are appropriately priced and there is no over- or undervalued
stocks to be found. Nevertheless, deviations from true stock prices can occur according to the hypothesis,
although these deviations are mostly random occurrences. Thus, the only way an investor can
outperform the overall stock market is by luck alone. However, the efficient market hypothesis is a
controversial topic where it is often discussed within modern financial circles where academic theory
has strong arguments both for and against the theory.
Purpose:
The purpose of this study is to investigate whether it is feasible to outperform the overall stock market
through investing in stocks that appear undervalued according to enterprise multiple (EV/EBITDA)
and the price-earnings ratio. / Thesis (MBA)-University of KwaZulu-Natal, Westville, 2009.
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An analysis of the turn-of-the-year effect in South African equity returnsPotgieter, Damien January 2007 (has links)
This study investigates FTSE/JSE All Share index monthly and daily equity returns for evidence of the January and TY effect. Four different measures of monthly return are analysed for the 1995-2006 period, whilst daily returns are analysed during the 1995-2005 period. In addition to this, analysis is conducted on monthly Fama-MacBeth risk premium estimates tor the FTSE/JSE All Share Index. Descriptive statistics are first analysed, followed by ANOV A or Kruskai-Wallis tests, the paired t-test and finally dummy variable regression analysis in investigating the seasonality of FTSE/JSE All Share Index returns and risk premia. Analysis on monthly returns reveals an absence of the January effect, however a positive slightly statistically significant December effect is found. Thus, investors earn abnormal returns on equity during the month of December. The results from the Fama-MacBeth risk premia estimates reveals highly statistically significant negative risk premia seasonal patterns during March, July and September. Thus, investors are in fact penalised for investing in equities during these months. In addition, the analysis reveals an absence of a December effect in risk premia, which contradicts the risk-return trade-off central to modem finance. The daily return analysis reveals a highly significant Turn-of-the-Year effect (TY), which suggests that investors earn abnormal returns on days at the turn of the year. Therefore, it is concluded that a December effect is apparent in South African equity monthly returns, whilst a March, July and September effect is apparent in South African equity risk premia contradicting the risk-return trade-off central to modem finance. In addition to this, a TY effect is present in South African equity daily returns.
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