ChainCatcher News, the SEC will hold a roundtable on the prohibition of trading through rules at its Washington headquarters on September 18. SEC Commissioners Caroline Crenshaw, Hester Peirce, and Director of Trading and Markets Jamie Selway will deliver opening remarks, and SEC Chairman Paul S. Atkins will give a speech. The meeting will feature three panel discussions on market participants' experiences over the past 20 years, the role of the trading prohibition in the current market structure, and potential future developments.