RFS2014

Wisdom of Crowds: The Value of Stock Opinions Transmitted through Social Media

Review of Financial Studies 27, 1367-1403

In one sentence

Stock opinions transmitted through social media can be very valuable.

Summary

We study whether investor opinions transmitted through social media predict future returns and earnings surprises. Using textual analysis of articles and commentaries, we find statistically significant and economically meaningful predictability.

Research topics

social mediastock opinionsreturn predictabilitywisdom of crowds