Textual Sentiment Analysis in Finance: A Survey of Methods and Models

February 27, 2013 Leave a comment

Textual Sentiment Analysis in Finance: A Survey of Methods and Models

Colm Kearney 

Monash University – Faculty of Business and Economics

Sha Liu 

Trinity College Dublin – School of Business
January 31, 2013

Abstract: 
The study of sentiment in qualitative information has implications for both the efficient market hypothesis and the behavioural finance. It provides an alternative perspective to test market efficiency over and above quantitative information, and may help explain the ‘anomalies’ in the market. In this paper, we survey the textual sentiment analysis literature, compare and discuss the information sources, content analysis methods, and financial models that have been used. We then summarize the essential findings of the interrelations between textual sentiment and firm performance or stock market activities. We believe that textual sentiment is a potential pricing factor because it captures hard-to-quantify aspects of material information. We also suggest the promising directions for future research.

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Kee Koon Boon (“KB”) is the co-founder and director of HERO Investment Management which provides specialized fund management and investment advisory services to the ARCHEA Asia HERO Innovators Fund (www.heroinnovator.com), the only Asian SMID-cap tech-focused fund in the industry. KB is an internationally featured investor rooted in the principles of value investing for over a decade as a fund manager and analyst in the Asian capital markets who started his career at a boutique hedge fund in Singapore where he was with the firm since 2002 and was also part of the core investment committee in significantly outperforming the index in the 10-year-plus-old flagship Asian fund. He was also the portfolio manager for Asia-Pacific equities at Korea’s largest mutual fund company. Prior to setting up the H.E.R.O. Innovators Fund, KB was the Chief Investment Officer & CEO of a Singapore Registered Fund Management Company (RFMC) where he is responsible for listed Asian equity investments. KB had taught accounting at the Singapore Management University (SMU) as a faculty member and also pioneered the 15-week course on Accounting Fraud in Asia as an official module at SMU. KB remains grateful and honored to be invited by Singapore’s financial regulator Monetary Authority of Singapore (MAS) to present to their top management team about implementing a world’s first fact-based forward-looking fraud detection framework to bring about benefits for the capital markets in Singapore and for the public and investment community. KB also served the community in sharing his insights in writing articles about value investing and corporate governance in the media that include Business Times, Straits Times, Jakarta Post, Manual of Ideas, Investopedia, TedXWallStreet. He had also presented in top investment, banking and finance conferences in America, Italy, Sydney, Cape Town, HK, China. He has trained CEOs, entrepreneurs, CFOs, management executives in business strategy & business model innovation in Singapore, HK and China.

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