Seminario para optar al título de Ingeniero Comercial, Mención Administración / A lo largo de la historia, se han efectuado numerosos estudios en el campo de los dividendos. El presente trabajo lleva a cabo una investigación sobre los retornos anormales de las acciones chilenas en torno a su Ex-Dividend Day, es decir, la fecha límite de suscripción para tener derecho a dividendos por parte de los accionistas, y tiene como objetivo determinar su existencia. Además, busca complementar los estudios expuestos por Castillo y Jakob (2006), y Fuenzalida y Nash (2004), esta vez, analizando específicamente los retornos anormales accionarios previos al Ex-Dividend Day. La metodología utilizada es la de “Estudio de eventos”, la cual tiene como objetivo comprobar si se ha generado algún tipo de rentabilidad extraordinaria en algún activo financiero. El principal resultado determinó la existencia de retornos anormales promedio acumulados (CAAR) significativos para un mes y dos semanas previas al Ex-Dividend Day, inclusive éste, corroborando lo expuesto por Eades, Hess and Kim en 1984.

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Academically, the ex-dividend is a neutral event in stock market. It not only has no positive material influence on firms¡¦ value but also creates no real worth for shareholders. However, lots of prior studies indeed proved there is conspicuous abnormal return during the few of ex-dividend dates and advanced plenty of hypotheses to explain the ex-dividend effect. Based on these inferences, my study more focus on the different of ex-dividend effect on the IC industry and the individual IC enterprise with different attributes. The study period is from 1998 to 2007. The study targets are the ex-dividend events of the all IC firms in Taiwan stock market. After eliminating the samples with incomplete data and disagreement, the sum of samples is 318 ex-dividend events of the 80 firms. The result of my study has five points. First, the ex-dividend effect is existence in the IC industry and there is no distinct trend during the study period. Second, the IC design industry, IC manufacture industry and IC assembly and test industry have the apparently different ex-dividend effect. Third, the samples in the bullish market and with low PBR and MSCI weight have obviously better ex-dividend effect. Fourth, the samples with low earning growth ratio and middle stock dividend ratio have better ex-dividend effect, but not obviously. Finally, before the ex-dividend dates, the samples with low employee stock bonus ratio have better ex-dividend effect. After the ex-dividend dates, the samples with high employee stock bonus ratio contrarily have better ex-dividend effect.

TESIS PARA OPTAR AL GRADO DE MAGÍSTER EN FINANZAS / A lo largo de la historia, se han efectuado numerosos estudios en el campo de los dividendos. El presente trabajo lleva a cabo una investigación sobre los retornos anormales de las principales acciones en Latinoamérica en torno a la fecha límite de suscripción para tener derecho a dividendos por parte de los accionistas, y tiene como objetivo determinar su existencia. Además, busca complementar los estudios expuestos por Castillo y Jakob (2006), y Fuenzalida y Nash (2004), esta vez, analizando específicamente los retornos anormales accionarios previos al Ex-Dividend Day, que es el primer día en la que la acción se transa sin tener derecho a los dividendos. La metodología utilizada es la de “Estudio de eventos”, la cual tiene como objetivo comprobar si se ha generado algún tipo de rentabilidad extraordinaria en algún activo financiero. El principal resultado determinó la existencia de retornos anormales promedio acumulados (CAAR) significativos para un mes y dos semanas previas a la fecha límite, inclusive ésta, corroborando lo expuesto por Eades, Hess and Kim en 1984.

This study is to examine the phenomenon of stock prices drop around the ex-dividend day in Taiwan. Investors purchasing the security before the ex-dividend date will receive the current dividend, whereas investors purchasing the security on or after this date will not receive the dividend. Consequently, the stock price should fall on the ex-dividend date. In a perfect market, the stock price is expected to fall by the amount of the dividend. I show that share prices do not fall by the full amount of dividend, on average. I focus on falling ratio of stock prices, along with stock return. I also study the factors which may influence stock price behavior and find that the drop of stock price is smaller than the amount of the dividend. That is, the stock price tends to rise on the ex-dividend day. The price drop ratio on the ex-dividend day is higher for firms with greater financial leverage, higher dividend pay out ratio and higher dividend yield. Finally, I also observe that stock return and trading volume increase around the ex-dividend day.

<p>In this thesis, we have analyzed the ex-dividend stock price behavior in the London Stock Exchange to see if the stock prices really drop by the same amount as the dividend on the ex-dividend day. Our sample data covers 80 FTSE100 companies of the London stock exchange for the period 2001 to 2006.</p><p>To answer the research question: Do returns on the London Stock Exchange act in accordance with the efficient market hypothesis on the ex-dividend day? We used a deductive approach and test four hypothesis. The study was carried out by comparing the actual value of the raw price ratio, market adjusted price ratio, raw price drop and market adjusted price drop to their theoretical values. The difference was tested for significance using the one sample t-test.</p><p>The results showed that there are significant differences in the observed figures from their theoretical or expected values. The observed raw price ratio is higher than the expected value of 1, implying that the stock price on the ex-dividend day drops by an amount that is lower than the dividend paid. Similarly, the market adjusted raw price ratio is also higher than the expected value of 1. The raw price drop and market adjusted price drop are lower than the dividend yield, indicating again that the stock price drops by an amount that is lower than the dividend paid.</p><p>Our results indicated that the null hypotheses stated are rejected since the drop in the stock prices is not equal to the amount of the dividend on the ex-dividend day.</p>

<p>Jag undersöker aktiekurser i samband med utdelning i syfte att få reda på om aktiepriserna har fallit mindre i Sverige jämfört med Finland samt om aktiepriserna i dessa länder påverkats av kortsiktiga investerare. Studien omfattar data från små börsbolag i Stockholms- och Helsingforsbörserna under åren 2002-2004. Jag använder den så kallade ex-dividend-dag-metoden för att mäta det relativa aktieprisfallet samt regressionsmodellen för att studera kortsiktiga investerares påverkan på aktiepriserna under utdelningsperioden.</p><p>Resultaten visar att det relativa aktieprisfallet var högre bland de finska aktierna under studiens tidsram, vilket sannolikt berodde på frånvaron av utdelningsskatten i Finland. De kortsiktiga investerarna verkar inte påverka den svenska aktiemarknaden och endast svagt stöd fås för deras påverkan på de finska aktiepriserna.</p>

In this thesis, we have analyzed the ex-dividend stock price behavior in the London Stock Exchange to see if the stock prices really drop by the same amount as the dividend on the ex-dividend day. Our sample data covers 80 FTSE100 companies of the London stock exchange for the period 2001 to 2006. To answer the research question: Do returns on the London Stock Exchange act in accordance with the efficient market hypothesis on the ex-dividend day? We used a deductive approach and test four hypothesis. The study was carried out by comparing the actual value of the raw price ratio, market adjusted price ratio, raw price drop and market adjusted price drop to their theoretical values. The difference was tested for significance using the one sample t-test. The results showed that there are significant differences in the observed figures from their theoretical or expected values. The observed raw price ratio is higher than the expected value of 1, implying that the stock price on the ex-dividend day drops by an amount that is lower than the dividend paid. Similarly, the market adjusted raw price ratio is also higher than the expected value of 1. The raw price drop and market adjusted price drop are lower than the dividend yield, indicating again that the stock price drops by an amount that is lower than the dividend paid. Our results indicated that the null hypotheses stated are rejected since the drop in the stock prices is not equal to the amount of the dividend on the ex-dividend day.

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Abstract Taiwan's stock market have always been ex-dividend Performance , in essence, to participate in ex-dividend will not increase wealth, but investors are usually regarded as dividends paid by companies operating in the future of the expected. Ex-dividend will to come into notice of investor. We collection from 1999 to 2007, total of nine-year period. The ex-dividend day stock prices analysis in Taiwan 50 index stocks. We use market model of Event Study, and respectively studies by OLS¡BGARCH and SUR model, it's estimated that the abnormal return (AR), this paper to discuss ex-dividend performance of the Taiwan50 index stocks. We to join may cause abnormal return of variables to Panel data regression analysis model, the certification may cause abnormal return of factors.