<p><strong>Purpose: </strong>The purpose of this thesis is to investigate if abnormal patterns concerning the rates of return during specific weekdays and months are observable for the companies in the OMXS30 during the period 2003-2010. A special focus will be put on the Monday effect anomaly.</p><p><strong>Background: </strong>Investors have a tendency to search for investment opportunities. If errors exist in the pricing of stocks it indicates that anomalies are present and that the stock market is inefficient. Investors then have the possibility to utilize the anomalies in order to receive above average returns.<strong> </strong></p><p><strong>Method: </strong>This study is using data of stock prices from Nasdaq OMX in the period of 2003-2010. The strength and existence of the Swedish stock market efficiency is measured through autocorrelation-, chi-square- and regression tests.<strong> </strong>Average monthly stock returns are calculated on daily-, monthly-, and yearly basis. The returns are compared in order to examine if day-of-the-week and turn-of-the-year anomalies exist.</p><p><strong>Conclusion: </strong>No Monday effect is found in 2003-2010. However, positive Thursday- and positive Friday effects are detected. A negative turn-of-the-year effect as well as a positive April effect is found. The investment opportunities that could be utilized in 2003-2010 due to the specific anomalies in the period do not necessarily imply that the same anomalies can be expected on the OMXS30 in the future.</p>

Investors are continuously looking to increase the return on their investments. In an ideal world investors want to increase there return and outperform the market. Theory states that it is impossible to do so without increasing your risk. Arbitrage is a concept where investors are able to generate risk-free returns exceeding the market. Dividend is a common tool for publicly listed firms when rewarding their shareholders. On ex- dividend day, the day after the dividend payout, the stock price should according to theory decrease in order for the valuation of the stock to be held constant. In our research we investigate if there are arbitrage opportunities in connection to the dividend payouts, namely the ex-dividend effect. We want to generalize our results across experimental settings, thus across different stock markets. As a basis for our research we picked the OMXS. We base our research on three theoretical areas: the dividend irrelevancy theory, the efficient market hypothesis and the anchoring theory. The dividend irrelevancy relates to how the stock price ought to behave on ex-dividend day whereas the efficient market hypotheses states that prices on a market fully reflects all available information. Both theories concur that no arbitrage opportunities should be available on the financial market. The anchoring theory highlights the fact that investors formulate an anchor price for financial assets, for example stocks. In our research we aim to formulate a practical method on how to make abnormal returns on the ex dividend effect, based on the anchoring theory. Our census sample consists of dividend-paying firms publicly registered on the OMXS, and consists of 694 observations taken from 2009 to 2012. The sample was picked on the basis of characteristics, for example that the firm has been registered for at least four years and paid dividend one time during the four years of investigation. In order to tests for arbitrage opportunities on ex-dividend day, we used a simple mathematical model measuring the deviation between the price drop cum-dividend day to ex-dividend day, and the dividend amount. We conclude that the price drop differs from the dividend amount, only accounting for a price drop of 0.73 of the dividend amount. Thus, the price drop for each dividend unit is 0.73, in relation to a perfectly efficient market where there should be no difference; hence the price drop would be equal to the dividend amount, 1. Research on the ex-dividend effect is a thoroughly investigated area, where the first research was presented in 1955. Previous research all attempts to explain why there are market anomalies, but none examine how one can capitalize on the findings. In our research we examine if it is possible to make abnormal returns based on a segmenting of stocks, depending on their price volatility. This research is thereby first in examining how to capitalize on found arbitrage opportunities.

Background: Previous studies on the subject, contrary to corresponding studies on mergers and acquisitions, have shown significant positive market reactions from all over the world on the announcements of divestitures. However, similar studies have not been done on the Swedish market. There are split opinions on the origin of the abnormal returns from the announcements of divestitures, but the economic cycle, choice of payment method and industry affiliation are recurring explaining variables in event studies. Aim: The aim of the study is to investigate the effect on shareholder wealth from the announcements of a divestiture on the Swedish market during the period from 1997-2017, as well as investigating how the abnormal returns are affected by the economic cycle, choice of payment method and industry affiliation. Completion: The study is conducted using the event study methodology and a deductive approach. Historical time series from divesting companies share prices are used to estimate expected returns which are then compared to actual returns to decide whether the announcement of a divestiture has an impact on shareholder wealth. Results: The study finds significant results that divesting companies’ shareholder wealth are positively affected by the announcement of a divestiture for both event windows (-3, +3) and (-1, +1). For each separate day within the event window the authors find statistically significant returns for day T-2 and T0. The authors find no statistically significant differences between the returns regarding the economic cycle. Regarding the choice of method of payment, it is concluded that payment through stock generates excess returns when compared to other financing alternatives. No differences could be found between different industry affiliations. / Bakgrund: Tidigare studier inom ämnet har, till skillnad från motsvarande forskning om företagsförvärv, påvisat signifikanta positiva reaktioner från marknader över hela världen vid tillkännagivandet av en avyttring. Däremot saknas studier om avyttringars effekt på den svenska marknaden. Det råder delade meningar om varför abnormal avkastning uppstår vid tillkännagivandet, där konjunkturläge, finansieringsalternativ och branschtillhörighet är vanligt förekommande förklarande variabler i eventstudier. Syfte: Studiens syfte är att undersöka hur tillkännagivandet av en avyttring påverkar säljande bolags aktiekurs på den svenska marknaden under tidsperioden 1997–2017, samt att undersöka hur rådande konjunkturläge, valt finansieringsalternativ och branschtillhörighet påverkar avkastningen Genomförande: Studien genomförs genom eventstudiemetodologin med en deduktiv ansats. Empirin utgår från historisk tidsseriedata från avyttrande bolags aktiekurser för att bestämma förväntad avkastning som sedan jämförs med faktiskt avkastning för att urskilja om tillkännagivandet påverkar kursutvecklingen. Resultat: Studien visar statistiskt signifikanta resultat för att avyttrande bolags aktiekurs påverkas positivt av tillkännagivandet av en avyttring både för eventfönstret (-3, +3) och (-1, +1). För de enskilda dagarna i eventfönstret finner författarna statistiskt signifikanta avkastningar för dag T-2 och T0. Författarna finner inga statistiskt säkerställda skillnader i avkastning beroende på rådande konjunkturläge. Gällande val av finansieringsalternativ visas att betalning genom aktier genererar signifikant högre avkastning än övriga alternativ. Inga samband kunde säkerställas beroende på företagens branschtillhörighet.

Submitted by Rafael Fernandes Piva (rafa_piva@hotmail.com) on 2016-02-12T16:30:19Z No. of bitstreams: 1 Dissertação de Mestrado - Rafael F. Piva.pdf: 987410 bytes, checksum: 36bea23e31284f38f87f91afe08988b9 (MD5) / Rejected by Renata de Souza Nascimento (renata.souza@fgv.br), reason: Rafael, boa tarde Para que possamos aceitar seu trabalho junto à biblioteca, realizar os seguintes ajustes conforme normas da ABNT: - Verificar a configuração da página, pois no arquivo em pdf NA CAPA, consta seu nome abaixo da data. (nome que deveria estar na contracapa) - Ainda na capa, o título deve estar em letras maiúsculas. - Alterar 2015 para 2016 pois foi quando você realizou a apresentação. Em seguida submeter o arquivo novamente. Att on 2016-02-12T19:12:29Z (GMT) / Submitted by Rafael Fernandes Piva (rafa_piva@hotmail.com) on 2016-02-12T19:23:29Z No. of bitstreams: 1 Dissertação de Mestrado - Rafael F. Piva.pdf: 988291 bytes, checksum: b72928664fcbb314404c2d51b74fa4fc (MD5) / Approved for entry into archive by Renata de Souza Nascimento (renata.souza@fgv.br) on 2016-02-12T19:28:51Z (GMT) No. of bitstreams: 1 Dissertação de Mestrado - Rafael F. Piva.pdf: 988291 bytes, checksum: b72928664fcbb314404c2d51b74fa4fc (MD5) / Made available in DSpace on 2016-02-15T11:28:34Z (GMT). No. of bitstreams: 1 Dissertação de Mestrado - Rafael F. Piva.pdf: 988291 bytes, checksum: b72928664fcbb314404c2d51b74fa4fc (MD5) Previous issue date: 2016-01-19 / O presente trabalho tem o objetivo de analisar os retornos de um portfólio investido na estratégia de risk arbitrage no Brasil entre 2004 e 2014, determinando se esta estratégia proporciona retornos anormais. De setembro de 2004 a dezembro de 2014, o portfólio de risk arbitrage gerou, depois de deduzidos os custos, um retorno anualizado de 14,40%, enquanto que o ativo livre de risco gerou retornos de 11,60% e o Índice Bovespa gerou 12,62%. Os resultados indicam que, usando-se tanto o CAPM como o modelo de três fatores de Fama e French (1993), a estratégia proporciona retornos anormais. Um segundo objetivo desse estudo é analisar se a distribuição dos retornos dessa estratégia é assimétrica. As evidências apontam para assimetria na distribuição dos retornos. Em função disto, foi utilizada a metodologia de Contingent Claims, que controla o efeito da relação não linear com os retornos de mercado, para analisar se mesmo assim a estratégia oferece retornos anormais. Com essa metodologia, não foram encontrados retornos anormais estatisticamente significativos. Por fim, o último objetivo desse estudo é analisar se o payoff da estratégia de risk arbitrage é análogo ao payoff da venda de uma put. Não foram encontradas evidências de que o payoff seja análogo ao da venda de uma opção de venda. / This study aims to analyze the returns of a portfolio invested in risk arbitrage strategy in Brazil between 2004 and 2014, determining whether this strategy provides abnormal returns. From September 2004 to December 2014, the portfolio of risk arbitrage generated, after costs, an annualized return of 14.40%, while the risk-free asset generated returns of 11.60%, and the Bovespa Index generated 12.62%. The results indicate that, using both the CAPM and the Fama and French (1993) three-factor model, the strategy provides abnormal returns. A second objective of this study is to analyze if the distribution of returns of this strategy is asymmetric. The evidence points to asymmetry in the distribution of returns. On that basis, it was used the methodology of Contingent Claims, which controls the effect of non-linear relationship between portfolio and market returns to analyze if the strategy still offers abnormal returns. With this methodology, no statistically significant abnormal returns were found. Finally, the ultimate goal of this study is to analyze whether the payoff of risk arbitrage strategy is analogous to that of selling a put option. No statistically significant evidence that the payoff is analogous to shorting a put option was found.

Submitted by Luca Werth (luca.camilla.werth@gmail.com) on 2016-02-13T14:21:02Z No. of bitstreams: 1 Thesis_Luca_Werth_IMF_FGV.pdf: 13602681 bytes, checksum: 08724741af45a494cd2781c7b14906f7 (MD5) / Approved for entry into archive by Ana Luiza Holme (ana.holme@fgv.br) on 2016-02-15T11:43:25Z (GMT) No. of bitstreams: 1 Thesis_Luca_Werth_IMF_FGV.pdf: 13602681 bytes, checksum: 08724741af45a494cd2781c7b14906f7 (MD5) / Made available in DSpace on 2016-02-15T15:01:53Z (GMT). No. of bitstreams: 1 Thesis_Luca_Werth_IMF_FGV.pdf: 13602681 bytes, checksum: 08724741af45a494cd2781c7b14906f7 (MD5) Previous issue date: 2016-01-19 / This study researches whether there has been abnormal stock market behaviour in Brazil as a consequence of election news (observed via opinion polls), regarding the last Brazilian presidential election, held in October 2014. Via applying event study methodology, the research on the Ibovespa and Petrobras suggests that events in which Rousseff was gaining in share have been subject to negative abnormal returns, and events where Rousseff was loosing in share have led to positive abnormal returns. Moreover, volatility has been significantly elevated during the election period and volume has been found to have slightly increased. / Este estudo investiga se houve comportamento anormal no mercado de ações no Brasil decorrente de notícias sobre as últimas eleições presidenciais brasileiras (através da utilização de sondagens), realizadas em outubro de 2014. Utilizando uma metodologia de estudos de evento (event studies), a investigação sobre o Ibovespa e a Petrobras sugere que, nos períodos em que Dilma melhorava a sua posição nas sondagens existiram retornos anormais negativos e, nos períodos em que Rousseff piorava a sua posição, existiram retornos anormais positivos. Além disso, a volatilidade foi bastante elevada durante o período eleitoral tendo o volume de transações aumentado ligeiramente.

Submitted by Florian Otto (otto.florian@yahoo.de) on 2017-10-16T12:55:01Z No. of bitstreams: 1 20171016_Thesis_FlorianOtto.pdf: 1580347 bytes, checksum: 52be341ade29a8adbe8f3fdaa580bb1a (MD5) / Rejected by Josineide da Silva Santos Locatelli (josineide.locatelli@fgv.br), reason: Dear Florian, It’s necessary to correct some things in your thesis. Page 4: The “Data de Aprovação” it’s 18/09/2017 Please, withdraw all the number of the pages before the introduction, but they need to be considered, example, if there are 9 pages before, the introduction will start with page 10. Please, put the numbers on the right side superior of the pages on 2017-10-16T13:17:25Z (GMT) / Submitted by Florian Otto (otto.florian@yahoo.de) on 2017-10-16T13:48:22Z No. of bitstreams: 1 20171016_Thesis_FlorianOtto.pdf: 1585174 bytes, checksum: 4ec5b97b4ff85efef101e2ce6a293b3f (MD5) / Rejected by Josineide da Silva Santos Locatelli (josineide.locatelli@fgv.br), reason: Dear Florian, Please, withdraw the word “title” all the pages; The “Data da Aprovação” was 18/09/2017 on 2017-10-16T14:17:40Z (GMT) / Submitted by Florian Otto (otto.florian@yahoo.de) on 2017-10-16T14:40:24Z No. of bitstreams: 1 20171016_Thesis_FlorianOtto.pdf: 1584768 bytes, checksum: 7a4f7480dad4b067347eb9806339aac3 (MD5) / Rejected by Josineide da Silva Santos Locatelli (josineide.locatelli@fgv.br), reason: Hi Florian, Please, correct the date to 18/09/2017 on 2017-10-17T12:14:00Z (GMT) / Submitted by Florian Otto (otto.florian@yahoo.de) on 2017-10-17T13:02:53Z No. of bitstreams: 1 20171017_Thesis_FlorianOtto.pdf: 1586948 bytes, checksum: 5b5a180f59d4bc647e93d82ae2a6fc32 (MD5) / Approved for entry into archive by Josineide da Silva Santos Locatelli (josineide.locatelli@fgv.br) on 2017-10-17T13:07:57Z (GMT) No. of bitstreams: 1 20171017_Thesis_FlorianOtto.pdf: 1586948 bytes, checksum: 5b5a180f59d4bc647e93d82ae2a6fc32 (MD5) / Made available in DSpace on 2017-10-17T14:25:04Z (GMT). No. of bitstreams: 1 20171017_Thesis_FlorianOtto.pdf: 1586948 bytes, checksum: 5b5a180f59d4bc647e93d82ae2a6fc32 (MD5) Previous issue date: 2017-09-18 / By using a multi-country set of acquirers from 14 different markets, this work aims to develop a global understanding of the impact of acquisition announcements on developed- and emerging-market acquirers. This paper uses an empirical event-study approach to investigate the effect of acquisition announcements on the share price of bidding firms. The sample contains 624 acquisition announcements with target firms located throughout the world between 1997 and 2015. The results contradict the conventional wisdom that developed-market acquirers generally experience losses. Both emerging-market and developed-market bidders gain significantly in the short term. Moreover, for developed-market acquirers, the announcement of cross-border acquisitions (CBAs) yields higher abnormal returns than the announcement of domestic acquisitions. On the other hand, emerging-market bidders gain from announcing domestic acquisitions, and lose substantially when publishing news about CBAs. In addition, the institutional environment is found to have an impact on acquirer returns. / Ao usar um conjunto de compradores de vários países de 14 mercados diferentes, este trabalho tem como objetivo desenvolver uma compreensão global do impacto dos anúncios de aquisição em adquirentes de mercados desenvolvidos e emergentes. Este artigo utiliza uma abordagem empírica de estudo de eventos para investigar o efeito de anúncios de aquisição sobre o preço da ação das empresas de licitação. A amostra contém 624 anúncios de aquisição com empresas alvo localizadas em todo o mundo entre 1997 e 2015. Os resultados contradizem a sabedoria convencional de que os adquirentes do mercado desenvolvido geralmente experimentam perdas. Os concorrentes dos mercados emergentes e do mercado desenvolvido ganham significativamente no curto prazo. Além disso, para os adquirentes do mercado desenvolvido, o anúncio de aquisições transfronteiriças (CBAs) produz maiores retornos anormais do que o anúncio de aquisições domésticas. Por outro lado, os concorrentes dos mercados emergentes ganham com o anúncio de aquisições domésticas e perdem substancialmente ao publicar notícias sobre CBAs. Além disso, o ambiente institucional tem impacto nos retornos dos adquirentes.

Submitted by Luis Fernando Schumaher (luis_schumaher@yahoo.com.br) on 2018-02-23T21:21:10Z No. of bitstreams: 1 Dissertacao MPA - Estudo de Eventos_Impairment - Luis Schumaher (2).pdf: 561762 bytes, checksum: 64c63a7f28492d392db0a5d797e778ba (MD5) / Approved for entry into archive by Mayara Costa de Sousa (mayara.sousa@fgv.br) on 2018-02-27T17:46:27Z (GMT) No. of bitstreams: 1 Dissertacao MPA - Estudo de Eventos_Impairment - Luis Schumaher (2).pdf: 561762 bytes, checksum: 64c63a7f28492d392db0a5d797e778ba (MD5) / Made available in DSpace on 2018-02-27T20:20:16Z (GMT). No. of bitstreams: 1 Dissertacao MPA - Estudo de Eventos_Impairment - Luis Schumaher (2).pdf: 561762 bytes, checksum: 64c63a7f28492d392db0a5d797e778ba (MD5) Previous issue date: 2018-01-05 / A capacidade informacional das demonstrações contábeis, sobretudo após a incorporação da International Financial Reporting Standars (IFRS), é objeto de estudos empíricos ao redor do mundo. Fama (1970, 1991) descreve a Hipótese de Eficiência do Mercado (HEM), em sua forma semiforte, que informações corporativas relevantes são incorporadas instantaneamente pelo mercado na forma de variações dos preços das ações. Assim, este estudo tem como objetivo verificar, através de um Estudo de Eventos, os impactos da divulgação de demonstrações financeiras com contabilizações de reavaliação de ativos tangíveis e intangíveis – impairment. Foram estudadas as 50 maiores empresas brasileiras (receita líquida) de capital aberto na Bolsa de Valores de São Paulo, de acordo com a classificação da revista Valor® 1000 (VALOR ECONÔMICO, 2016), no período compreendido entre o primeiro trimestre de 2010 e o quarto trimestre de 2016. Observou- se que publicações de demonstrações financeiras com reconhecimento de impairment dos ativos tangíveis e intangíveis, previstos pelas International Financial Reporting Standards (IFRS), causaram impactos nas expectativas dos acionistas, representadas pela variação nos retornos das ações. Além disso, o mercado se comportou de maneira eficiente, em sua forma semiforte. As principais conclusões do presente estudo são: i) os anúncios impairment de ativos tangíveis e intangíveis apresentam conteúdo informacional relevante para a precificação das ações no mercado; e ii) o mercado brasileiro se comportou de maneira eficiente na forma semiforte pois, a HEM foi atestada em conjunto para os eventos de impairment estudados. / The informational capacity of the financial statements, especially after the incorporation of the International Financial Reporting Standards (IFRS), is the subject of empirical studies around the world. Fama (1970, 1991) describes the Theory of Efficient Markets, in its semistrong form, that relevant corporate information is instantly incorporated by the market in the form of stock price changes. Thus, this study aims to verify, through a Study of Events, the impacts of the disclosure of financial statements with revaluation of tangible and intangible assets - impairment. The 50 largest Brazilian companies (net revenue) were studied on the São Paulo Stock Exchange, according to the magazine Valor® 1000 (ECONOMIC VALUE, 2016), in the period from the first quarter of 2010 to the fourth quarter of 2016. It was noted that financial statement publications with recognition of impairment of tangible and intangible assets, as predicted by the International Financial Reporting Standards (IFRS), had an impact on shareholders' expectations, represented by the variation in stock returns. However, the market did behave efficiently, in its semifortex form. The main conclusions of the present study are: i) the announcements of impairment of tangible and intangible assets present informative content relevant to the pricing of shares in the market; and ii) the Brazilian market did behave efficiently in the semistrong form, since HEM was not jointly tested for the impairment events studied.

Made available in DSpace on 2010-04-20T21:00:02Z (GMT). No. of bitstreams: 4 Sebastian Arbeleche.pdf.jpg: 18559 bytes, checksum: 9896e50946c488c842d22c7b00fbebd5 (MD5) Sebastian Arbeleche.pdf.txt: 114868 bytes, checksum: 72378c6543b7688b7e5f5d678290ac91 (MD5) Sebastian Arbeleche.pdf: 727086 bytes, checksum: 52168b50a9d358b209c62df383370b90 (MD5) license.txt: 4886 bytes, checksum: 0e234dd3d7b4053a4b0187f8fc733d03 (MD5) Previous issue date: 2008-12-03T00:00:00Z / Esta dissertação analisa o desempenho de longo prazo (36 meses após o evento)das fusões e aquisições em países latino-americanos. O estudo abrange um total de 429 eventos de fusão e aquisição anunciados entre os anos de 1994 a 2005, em sete países da América Latina (Brasil, México, Chile, Argentina, Peru, Colômbia e Venezuela), onde os mercados de capitais estão relativamente mais desenvolvidos. É utilizada uma abordagem em tempo calendário baseada no modelo de mercado CAPM, através do qual se calcula o alfa de Jensen, para estimar os retornos anormais de longo prazo. Há evidências claras de retornos anormais de longo prazo negativos e significativos para México e Argentina, enquanto para Chile observam-se retornos anormais de longo prazo positivos e significativos. Os demais países da região (Brasil, Peru, Colômbia e Venezuela) não apresentam retornos anormais de longo prazo significativamente diferentes de zero. Procura-se também analisar as amostras de eventos a partir de diferentes pontos de vista com o intuito de entender quais os possíveis determinantes do desempenho de longo prazo: forma de pagamento, atitude do comprador, transações locais versus internacionais, especialização versus diversificação, e ocorrência da transação dentro ou fora de uma onda de fusões e aquisições. Observam-se evidências de retornos anormais de longo prazo para as subamostras, mas não se registra um comportamento uniforme na amostra de países. / This dissertation analyzes the long-run performance (36 months post-event period) of Latin American mergers and acquisitions. This work covers a total of 429 merger & acquisition events announced during the period comprehended between the years 1994 and 2005, in 7 Latin American countries (Brazil, Mexico, Chile, Argentina, Peru, Colombia and Venezuela), where capital markets are relatively more developed. A CAPM based calendar-time approach is used to estimate Jensen’s α, a measure of long-run abnormal returns. On the one hand, Mexico and Argentina present hard evidence on the existence of significant negative abnormal returns. On the other hand, Chile shows evidence of significant positive long-run abnormal returns. There is no proof of abnormal performance for acquiring companies in the rest of the analyzed countries (Brazil, Peru, Colombia and Venezuela). The mergers and acquisitions sample is also studied from different points of view in order to establish possible long-run performance determinants, such as: mode of payment, deal attitude, country of transaction (cross-border or non-cross-border), type of activity (related or non-related) and timing relative to M&A wave (in-wave or out-of-wave). This sub-sample analysis offers some evidence on the existence of abnormal performance as well, but there is no unique results pattern through the sample of studied countries.

The study examined the impact of earnings announcements on the share price of selected mining companies using the most recent data from the Johannesburg Stock Exchange. This study covered a period from 1 January 2011; to 31 December 2015. Using the classical event study methodology, the speed of reaction of the market to annual earnings information releases for a sample of 27 companies listed on the exchange is tested. Over the sample period, the Abnormal Returns (AR), Average Abnormal Returns (AAR) and Cumulative Average Abnormal Returns (CAAR) were calculated. The AR, AAR and CAAR show positive results obtained during the earnings announcement period. The returns yielded from these results are significantly different from zero. / Financial Accounting / M. Phil. (Accounting Sciences)

O objetivo desse trabalho é analisar os efeitos do anúncio da dupla-listagem sobre o comportamento das ações no mercado doméstico das empresas que promoveram a listagem de ADRs. Os aspectos do comportamento analisados são os retornos anormais, os padrões de liquidez e volatilidade de preços. Foram analisados 22 programas de ADRs. Para cada uma das características analisadas foi utilizada uma diferente técnica empírica. A análise dos retornos anormais foi realizada através de um estudo de eventos para 5 diferentes janelas de estudos. A segunda técnica empírica utiliza-se do Índice de Negociabilidade, uma métrica desenvolvida pela Economática envolvendo o número de negócios diários e o volume diário transacionado da ação para medir potenciais alterações na liquidez das ações e, por fim, a terceira técnica utilizada utiliza a variância dos retornos como medida relevante de alteração de volatilidade dos mesmos. Embora com limitações, o estudo apresentou resultados em linha com parte da literatura de referência, demonstrando, excetuando-se pela janela de 5 dias pré e pós evento, que não é possível afirmar que os retornos das ações estudadas após o anúncio da emissão das ADRs são diferentes dos retornos apresentados pelas ações antes do anúncio. Com relação à análise de impacto sobre a liquidez das ações (INM 50d), foi possível rejeitar a hipótese de que o programa não causa impacto na liquidez com um nível de significância de 10% após comparar a liquidez das ações das empresas que emitiram ADRs com a liquidez das ações das empresas que compunham as carteiras dos grupos de controle. Finalmente, ao estudar a volatilidade das ações, foi possível observar que, para os testes-F realizados, das 22 ações testadas, 11 apresentaram resultados que permitem rejeitar a hipótese nula e, portanto, inferir que, para essas companhias, a variância dos retornos durante o período de 50 dias pós-evento foi diferente da variância dos retornos durante o período de 50 dias pré-evento dentro de um nível de significância de 5%. Para as outras 11 empresas testadas, não foi possível rejeitar a hipótese nula e, portanto, não foi possível concluir, para essas empresas, que o evento do anúncio da emissão de ADRs exerceu qualquer influência sobre a volatilidade dos retornos das ações subjacentes. Essa dissertação contribui para o entendimento mais aprofundado das consequências da emissão de ADRs. Tal processo, caro e demandante, expõe as companhias a diferentes níveis de regulação e exige um nível mais elevado de governança e, portanto, deve ser bem entendido por gestores, bancos e consultores. / The purpose of this paper is to analyze the effects of the cross-listing announcement on the behavior of the shares of Brazilian companies that enroll in ADR programs. The analyzed aspects of the domestic shares’ behavior are the abnormal returns, the liquidity levels and the volatility of the returns measured by their variance. 22 ADR programs were analyzed. For each of the characteristic studied, a different empirical technique was utilized. The abnormal returns analysis was conducted through an event study for 5 different study windows. The second empirical technique rely on the “Indice de Negociabilidade”, a metric developed by Economatica which involves the number of daily trades of the market and of the shares to measure potential changes in the liquidity levels of the shares. Finally, the third method used analyzes the variance of the returns of the domestic shares as relevant measure of volatility of returns. Although with limitations, the study presented results aligned with part of the reference studies and bibliography, demonstrating, except for the window of 5 days pre and post event, that it is not possible to assert that the returns of the shares analyzed after the announcement of the issuance of the ADRs are different from the returns presented by the shares before the announcement. With regard to the analysis of the impact on shares’ liquidity (INM 50d), it was possible to reject the hypothesis that the program does not impact liquidity with a significance level of 10% after comparing the liquidity of the shares of the companies that issued ADRs with the liquidity companies’ shares that composed the portfolios of the control groups. Finally, in studying volatility of the shares, it was possible to observe that for the F-tests performed, of the 22 shares tested, 11 presented results that allow the rejection of the null hypothesis and, therefore, infer that for these companies, the variance of returns during the 50-day period postevent was different from the variance of returns over the 50-day period previous to the event within a significance level of 5%. For the 11 other companies tested, it was not possible to reject the null hypothesis and therefore it was not possible to conclude, for these companies, that the event of the announcement of the issuance of ADRs had any influence on the volatility of the returns of the underlying shares. This dissertation contributes to a more in-depth understanding of the consequences of issuing ADRs. Such an expensive and demanding process exposes companies to different levels of regulation and requires a higher level of governance and therefore must be well understood by managers, banks and consultants.