Emotions are generated in the news and social media by way of the words used in postings. These emotions are transmitted to readers, impact on their state of mind and, in turn, influence their investment decisions. We have studied how the emotions impact on security prices both at the time of the release of new information and in the period after the information release. This presentation briefly reviews our findings as to how emotions impact on security prices, both at the time of the release of information and in the period subsequent to the inf...