In previous versions of Article 4.1 on Fear and Greed I used information from the company DALBAR that issues an annual report on investor behavior. (mindfullyinvesting.com)
Jillian D'Onfro and Alyson Shontell contributed reporting on previous versions of this article. (businessinsider.com)
UPDATE - A previous version of the article noted the device codename being «Keian». (crackberry.com)