http://www.reuters.com/article/2015/10/05/luminex-stocks-idUSL1N1240G720151005 "Luminex plans to only allow institutional investors, such as mutual fund companies, to trade on its platform, snubbing the broker dealers and proprietary high-frequency trading firms that own and generate much of the trading in other private trading venues. Luminex's 73 subscribers, which are listed on the company's website, include Vanguard, TIAA-CREF Investment Management, AllianceBernstein, Eaton Vance, Goldman Sachs Asset Management, Greenlight Capital Inc, and J.P. Morgan Investment Management. (luminextrading.com/) The consortium that owns Luminex and collectively manages 40 percent of U.S. fund assets said it started the trading platform with the aim of lowering transaction costs and eliminating the types of profit driven conflicts of interest that have been seen in some existing venues. Any profits made by Luminex will be invested back into the company to further reduce trading costs."