Prediction by Twitter

Hedging your stocks with Twitter

Professor Johan Bollen has been looking at raw Twitter data to help discover trends and insight. Using an algorithm called the Google-Profile of Mood States (GPOMS), Prof. Bollen and team looked at almost 10 million tweets from 2.7 million tweeters in 2008 to see if there was a correlation between mood states and the daily Dow Jones Industrial Average.

"Their extraordinary conclusion is that there really is a correlation between the Dow Jones Industrial Average and one of the GPOMS indices--calmness."
via Technology Review.

Time Magazine thought that was so cool it added it to its 50 Best Inventions' Issue. Congrats to Professor Bollen!