On November 18, 2015, the SEC proposed rules that would require Alternative Trading Systems that trade stocks listed on national securities exchanges, including “dark pools”, to make certain detailed disclosures regarding their operations and the activities of their broker-dealer operators and affiliates. The proposed Form ATS-N would, among other things, require disclosure of: (i) information regarding trading by the broker-dealer operator and its affiliates on the ATS; (ii) the types of orders and market data used on the ATS; and (iii) the ATS’ execution and priority procedures. The proposed rules would make Form ATS-N disclosures publicly available on the SEC’s website. The SEC will accept public comment on the proposal for 60 days after its publication in the Federal Register.

The text of the SEC proposed rule is available at: http://www.sec.gov/rules/proposed/2015/34-76474.pdf.