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Using Twitter to Predict the Stock Market

dc.contributor.authorNofer, Michael
dc.contributor.authorHinz, Oliver
dc.date.accessioned2018-01-08T07:44:47Z
dc.date.available2018-01-08T07:44:47Z
dc.date.issued2015
dc.description.abstractBehavioral finance researchers have shown that the stock market can be driven by emotions of market participants. In a number of recent studies mood levels have been extracted from Social Media applications in order to predict stock returns. The paper tries to replicate these findings by measuring the mood states on Twitter. The sample consists of roughly 100 million tweets that were published in Germany between January, 2011 and November, 2013. In a first analysis, a significant relationship between aggregate Twitter mood states and the stock market is not found. However, further analyses also consider mood contagion by integrating the number of Twitter followers into the analysis. The results show that it is necessary to take into account the spread of mood states among Internet users. Based on the results in the training period, a trading strategy for the German stock market is created. The portfolio increases by up to 36 % within a six-month period after the consideration of transaction costs.
dc.identifier.pissn1867-0202
dc.identifier.urihttps://dl.gi.de/handle/20.500.12116/10645
dc.publisherSpringer
dc.relation.ispartofBusiness & Information Systems Engineering: Vol. 57, No. 4
dc.relation.ispartofseriesBusiness & Information Systems Engineering
dc.subjectForecasting
dc.subjectMood analysis
dc.subjectSocial media
dc.subjectStock market
dc.subjectTwitter
dc.titleUsing Twitter to Predict the Stock Market
dc.typeText/Journal Article
gi.citation.endPage242
gi.citation.startPage229

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