https://en.wikipedia.org/wiki/Volfefe_index https://en.wikipedia.org/wiki/Volfefe_index Or one out of tons of specific companies: https://www.washingtonpost.c

https://en.wikipedia.org/wiki/Volfefe_index https://en.wikipedia.org/wiki/Volfefe_index Or one out of tons of specific companies: https://www.washingtonpost.com/news/the-fix/wp/2016/12/06/did-donald-trump-tank-boeings-stock-because-he-was-mad-about-a-news-article/ https://www.washingtonpost.com/news/the-fix/wp/2016/12/06/di...