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Twitter activity, investor attention, and the diffusion of information
Author(s) -
Rakowski David,
Shirley Sara E.,
Stark Jeffrey R.
Publication year - 2020
Publication title -
financial management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.647
H-Index - 68
eISSN - 1755-053X
pISSN - 0046-3892
DOI - 10.1111/fima.12307
Subject(s) - stock (firearms) , business , social media , institutional investor , financial economics , finance , economics , corporate governance , geography , computer science , world wide web , archaeology
We examine the impact of Twitter attention on stock prices by examining over 21 million company‐specific tweets over a 5‐year period. Through a quasi‐natural experiment identifying official Twitter outages, we find that Twitter influences stock trading, especially among small, less visible securities primarily traded by retail investors. In addition, we determine that Twitter activity is associated with positive abnormal returns and when tweets occur in conjunction with traditional news events, more information is spread to investors. Finally, we show that retail investor activity drives the Twitter effect as institutional investors less actively trade the affected stocks.