Do they? ==About 3,600 firms were listed on U.S. stock exchanges at the end of 2017, down more than half from 1997.== https://www.bloomberg.com/opinion/articl

Do they? ==About 3,600 firms were listed on U.S. stock exchanges at the end of 2017, down more than half from 1997.== https://www.bloomberg.com/opinion/articles/2018-04-09/where-have-all-the-u-s-public-companies-gone https://www.bloomberg.com/opinion/articles/2018-04-09/where-...