Daily Market News Sentiment and Stock Prices


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Allen, David E. and McAleer, Michael and Singh, Abhay K. (2015) Daily Market News Sentiment and Stock Prices. [ Documentos de Trabajo del Instituto Complutense de Análisis Económico (ICAE); nº 11, 2015, ISSN: 2341-2356 ] (Unpublished)

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In recent years there has been a tremendous growth in the influx of news related to traded assets in international financial markets. This financial news is now available via print media but also through real-time online sources such as internet news and social media sources. The increase in the availability of financial news and investor’s ease of access to it has a potentially significant impact on market price formation as these news items are swiftly transformed into investors sentiment which in turn drives prices. Various commercial agencies have started developing their own financial news data sets which are used by investors and traders to support their algorithmic trading strategies. Thomson Reuters News Analytics (TRNA)1 is one such data set. In this study we use the TRNA data set to construct a series of daily sentiment scores for Dow Jones Industrial Average (DJIA) stock index component companies.
We use these daily DJIA market sentiment scores to study the influence of financial news sentiment scores on the stock prices of these companies using a multi-factor model. We use an augmented Fama French Three Factor Model to evaluate the additional effects of
financial news sentiment on stock prices in the context of this model. Our results suggest that even when market factors are taken into account, sentiment scores have a significant effect on Dow Jones constituent company returns and that lagged daily sentiment scores are
often significant, suggesting that information compounded in these scores is not immediately reflected in security prices and related return series.

Item Type:Working Paper or Technical Report
Additional Information:

Preprint submitted to Journal of Financial Markets

Uncontrolled Keywords:Sentiment Analysis; Financial News; Factor Models; Asset Pricing.
Subjects:Social sciences > Economics > Econometrics
Social sciences > Economics > Stock exchanges
JEL:G12, G140, C31
Series Name:Documentos de Trabajo del Instituto Complutense de Análisis Económico (ICAE)
ID Code:33044
Deposited On:08 Sep 2015 10:30
Last Modified:08 Sep 2015 10:30

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